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|00001210| 31 2d 31 09 53 69 6d 70 | 6c 69 66 69 65 64 20 62 |1-1.Simp|lified b|
|00001220| 6c 6f 63 6b 20 64 69 61 | 67 72 61 6d 20 6f 66 20 |lock dia|gram of |
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|000012b0| 38 0d 46 69 67 75 72 65 | 20 32 2d 32 09 48 61 72 |8.Figure| 2-2.Har|
|000012c0| 64 20 64 69 73 6b 20 64 | 72 69 76 65 20 68 6f 75 |d disk d|rive hou|
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|000012e0| 32 2d 33 09 42 72 61 63 | 6b 65 74 20 66 6f 72 20 |2-3.Brac|ket for |
|000012f0| 74 68 65 20 68 61 72 64 | 20 64 69 73 6b 20 64 72 |the hard| disk dr|
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|00001310| 2d 34 09 48 61 72 64 20 | 64 69 73 6b 20 64 72 69 |-4.Hard |disk dri|
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|000015e0| 33 2d 35 09 4c 65 73 73 | 2d 74 68 61 6e 2d 33 30 |3-5.Less|-than-30|
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|00001600| 35 0d 46 69 67 75 72 65 | 20 33 2d 36 09 46 69 6e |5.Figure| 3-6.Fin|
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|00001650| 14 32 36 0d 46 69 67 75 | 72 65 20 33 2d 38 09 43 |.26.Figu|re 3-8.C|
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|00001680| 33 2d 39 09 50 6f 77 65 | 72 42 6f 6f 6b 20 53 65 |3-9.Powe|rBook Se|
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|00002080| 6c 6f 70 65 72 20 4e 6f | 74 65 73 2c 20 4e 75 6d |loper No|tes, Num|
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|000020d0| 09 47 75 69 64 65 20 74 | 6f 20 74 68 65 20 4d 61 |.Guide t|o the Ma|
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|00002100| 65 64 69 74 69 6f 6e 0d | 6e 09 44 65 73 69 67 6e |edition.|n.Design|
|00002110| 69 6e 67 20 43 61 72 64 | 73 20 61 6e 64 20 44 72 |ing Card|s and Dr|
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|00002140| 74 68 69 72 64 20 65 64 | 69 74 69 6f 6e 0d 6e 09 |third ed|ition.n.|
|00002150| 49 6e 73 69 64 65 20 4d | 61 63 69 6e 74 6f 73 68 |Inside M|acintosh|
|00002160| 2c 20 56 6f 6c 75 6d 65 | 73 20 49 20 74 68 72 6f |, Volume|s I thro|
|00002170| 75 67 68 20 56 49 0d 6e | 09 4d 61 63 69 6e 74 6f |ugh VI.n|.Macinto|
|00002180| 73 68 20 43 6c 61 73 73 | 69 63 20 49 49 2c 20 4d |sh Class|ic II, M|
|00002190| 61 63 69 6e 74 6f 73 68 | 20 50 6f 77 65 72 42 6f |acintosh| PowerBo|
|000021a0| 6f 6b 20 46 61 6d 69 6c | 79 2c 20 61 6e 64 20 4d |ok Famil|y, and M|
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|000021c0| 46 61 6d 69 6c 79 20 44 | 65 76 65 6c 6f 70 65 72 |Family D|eveloper|
|000021d0| 20 4e 6f 74 65 73 2c 20 | 41 50 44 41 20 70 75 62 | Notes, |APDA pub|
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|00002200| 4d 6f 72 65 20 49 6e 66 | 6f 72 6d 61 74 69 6f 6e |More Inf|ormation|
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|000022c0| 74 69 6f 6e 73 20 6f 6e | 20 41 70 70 6c 65 20 70 |tions on| Apple p|
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|000023f0| 20 6f 66 66 65 72 73 20 | 63 6f 6e 76 65 6e 69 65 | offers |convenie|
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|00002480| 73 20 43 61 74 61 6c 6f | 67 2c 20 63 6f 6e 74 61 |s Catalo|g, conta|
|00002490| 63 74 20 0d 41 50 44 41 | 20 0d 41 70 70 6c 65 20 |ct .APDA| .Apple |
|000024a0| 43 6f 6d 70 75 74 65 72 | 2c 20 49 6e 63 2e 20 0d |Computer|, Inc. .|
|000024b0| 50 2e 4f 2e 20 42 6f 78 | 20 33 31 39 0d 42 75 66 |P.O. Box| 319.Buf|
|000024c0| 66 61 6c 6f 2c 20 4e 59 | 20 31 34 32 30 37 2d 30 |falo, NY| 14207-0|
|000024d0| 33 31 39 54 65 6c 65 70 | 68 6f 6e 65 09 38 30 30 |319Telep|hone.800|
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|00002500| 37 2d 30 30 32 39 20 28 | 43 61 6e 61 64 61 29 0d |7-0029 (|Canada).|
|00002510| 37 31 36 2d 38 37 31 2d | 36 35 35 35 20 28 49 6e |716-871-|6555 (In|
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|00002530| 78 09 37 31 36 2d 38 37 | 31 2d 36 35 31 31 20 09 |x.716-87|1-6511 .|
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|00002550| 0d 41 6d 65 72 69 63 61 | 20 4f 6e 6c 69 6e 65 09 |.America| Online.|
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|00003240| 42 6f 6f 6b 20 44 75 6f | 20 32 37 30 63 20 63 6f |Book Duo| 270c co|
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|00003300| 20 44 75 6f 20 32 37 30 | 63 50 6f 77 65 72 42 6f | Duo 270|cPowerBo|
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|000036f0| 69 66 66 65 72 65 6e 74 | 20 63 6f 6c 6f 72 73 20 |ifferent| colors |
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|00003740| 20 63 61 6e 20 64 69 73 | 70 6c 61 79 20 74 68 6f | can dis|play tho|
|00003750| 75 73 61 6e 64 73 20 6f | 66 20 63 6f 6c 6f 72 73 |usands o|f colors|
|00003760| 20 28 34 4b 29 20 6f 6e | 20 61 20 36 34 30 2d 70 | (4K) on| a 640-p|
|00003770| 69 78 65 6c 20 62 79 20 | 34 30 30 2d 70 69 78 65 |ixel by |400-pixe|
|00003780| 6c 20 64 69 73 70 6c 61 | 79 20 61 72 65 61 2e 20 |l displa|y area. |
|00003790| 0d 54 68 65 20 73 79 73 | 74 65 6d 20 73 6f 66 74 |.The sys|tem soft|
|000037a0| 77 61 72 65 20 61 6c 6c | 6f 77 73 20 79 6f 75 20 |ware all|ows you |
|000037b0| 74 6f 20 73 65 6c 65 63 | 74 20 65 69 74 68 65 72 |to selec|t either|
|000037c0| 20 6d 6f 64 65 20 62 79 | 20 6d 65 61 6e 73 20 6f | mode by| means o|
|000037d0| 66 20 74 68 65 20 4d 6f | 6e 69 74 6f 72 20 63 6f |f the Mo|nitor co|
|000037e0| 6e 74 72 6f 6c 20 70 61 | 6e 65 6c 20 28 73 65 65 |ntrol pa|nel (see|
|000037f0| 20 43 68 61 70 74 65 72 | 20 33 29 2e 20 42 65 63 | Chapter| 3). Bec|
|00003800| 61 75 73 65 20 74 68 65 | 20 56 52 41 4d 20 69 73 |ause the| VRAM is|
|00003810| 20 61 20 66 69 78 65 64 | 20 73 69 7a 65 2c 20 32 | a fixed| size, 2|
|00003820| 35 36 4b 20 62 79 20 31 | 36 20 6d 61 78 69 6d 75 |56K by 1|6 maximu|
|00003830| 6d 2c 20 69 74 20 63 61 | 6e 20 68 61 6e 64 6c 65 |m, it ca|n handle|
|00003840| 20 6f 6e 6c 79 20 61 20 | 63 65 72 74 61 69 6e 20 | only a |certain |
|00003850| 61 6d 6f 75 6e 74 20 6f | 66 20 64 61 74 61 2e 20 |amount o|f data. |
|00003860| 49 66 20 79 6f 75 20 73 | 65 6c 65 63 74 20 74 68 |If you s|elect th|
|00003870| 65 20 31 36 2d 62 69 74 | 20 6d 6f 64 65 2c 20 74 |e 16-bit| mode, t|
|00003880| 6f 20 65 6e 61 62 6c 65 | 20 74 68 65 20 56 52 41 |o enable| the VRA|
|00003890| 4d 20 74 6f 20 68 61 6e | 64 6c 65 20 74 68 65 20 |M to han|dle the |
|000038a0| 74 68 6f 75 73 61 6e 64 | 73 20 6f 66 20 63 6f 6c |thousand|s of col|
|000038b0| 6f 72 73 2c 20 74 68 65 | 20 73 79 73 74 65 6d 20 |ors, the| system |
|000038c0| 73 6f 66 74 77 61 72 65 | 20 72 65 73 69 7a 65 73 |software| resizes|
|000038d0| 20 74 68 65 20 64 69 73 | 70 6c 61 79 20 61 72 65 | the dis|play are|
|000038e0| 61 20 64 6f 77 6e 20 74 | 6f 20 34 30 30 20 6c 69 |a down t|o 400 li|
|000038f0| 6e 65 73 20 69 6e 73 74 | 65 61 64 20 6f 66 20 34 |nes inst|ead of 4|
|00003900| 38 30 2c 20 61 6e 64 20 | 63 65 6e 74 65 72 73 20 |80, and |centers |
|00003910| 74 68 65 20 6c 69 6e 65 | 73 20 6f 6e 20 74 68 65 |the line|s on the|
|00003920| 20 73 63 72 65 65 6e 2c | 20 6c 65 61 76 69 6e 67 | screen,| leaving|
|00003930| 20 62 6c 61 63 6b 20 62 | 61 6e 64 73 20 6f 66 20 | black b|ands of |
|00003940| 34 30 20 6c 69 6e 65 73 | 20 65 61 63 68 20 61 74 |40 lines| each at|
|00003950| 20 74 68 65 20 74 6f 70 | 20 61 6e 64 20 62 6f 74 | the top| and bot|
|00003960| 74 6f 6d 20 6f 66 20 74 | 68 65 20 73 63 72 65 65 |tom of t|he scree|
|00003970| 6e 2e 20 0d 54 61 62 6c | 65 20 32 2d 31 20 6c 69 |n. .Tabl|e 2-1 li|
|00003980| 73 74 73 20 74 68 65 20 | 66 65 61 74 75 72 65 73 |sts the |features|
|00003990| 20 6f 66 20 74 68 65 20 | 61 63 74 69 76 65 2d 6d | of the |active-m|
|000039a0| 61 74 72 69 78 20 54 46 | 54 20 63 6f 6c 6f 72 20 |atrix TF|T color |
|000039b0| 64 69 73 70 6c 61 79 2e | 20 0d 54 61 62 6c 65 20 |display.| .Table |
|000039c0| 32 2d 31 09 46 65 61 74 | 75 72 65 73 20 6f 66 20 |2-1.Feat|ures of |
|000039d0| 74 68 65 20 61 63 74 69 | 76 65 2d 6d 61 74 72 69 |the acti|ve-matri|
|000039e0| 78 20 54 46 54 20 63 6f | 6c 6f 72 20 64 69 73 70 |x TFT co|lor disp|
|000039f0| 6c 61 79 0d 46 65 61 74 | 75 72 65 09 44 65 73 63 |lay.Feat|ure.Desc|
|00003a00| 72 69 70 74 69 6f 6e 20 | 09 0d 44 69 73 70 6c 61 |ription |..Displa|
|00003a10| 79 20 6d 61 74 72 69 78 | 20 09 36 34 30 20 78 20 |y matrix| .640 x |
|00003a20| 34 38 30 20 70 69 78 65 | 6c 73 2c 20 38 2d 62 69 |480 pixe|ls, 8-bi|
|00003a30| 74 20 63 6f 6c 6f 72 0d | 36 34 30 20 78 20 34 30 |t color.|640 x 40|
|00003a40| 30 20 70 69 78 65 6c 73 | 2c 20 31 36 2d 62 69 74 |0 pixels|, 16-bit|
|00003a50| 20 63 6f 6c 6f 72 09 0d | 41 63 74 69 76 65 20 64 | color..|Active d|
|00003a60| 69 73 70 6c 61 79 20 61 | 72 65 61 09 31 37 31 20 |isplay a|rea.171 |
|00003a70| 6d 6d 20 78 20 31 33 30 | 20 6d 6d 20 09 0d 44 69 |mm x 130| mm ..Di|
|00003a80| 73 70 6c 61 79 20 6d 6f | 64 75 6c 65 20 64 69 6d |splay mo|dule dim|
|00003a90| 65 6e 73 69 6f 6e 73 09 | 32 33 37 2e 34 20 6d 6d |ensions.|237.4 mm|
|00003aa0| 20 77 69 64 65 2c 20 31 | 37 35 2e 32 20 6d 6d 20 | wide, 1|75.2 mm |
|00003ab0| 68 69 67 68 2c 20 38 2e | 37 20 6d 6d 20 64 65 65 |high, 8.|7 mm dee|
|00003ac0| 70 09 0d 53 74 61 6e 64 | 61 72 64 20 64 69 73 70 |p..Stand|ard disp|
|00003ad0| 6c 61 79 20 6d 6f 64 65 | 09 4e 6f 72 6d 61 6c 6c |lay mode|.Normall|
|00003ae0| 79 20 77 68 69 74 65 09 | 0d 43 6f 6e 74 72 61 73 |y white.|.Contras|
|00003af0| 74 20 72 61 74 69 6f 09 | 36 30 3a 31 20 6d 69 6e |t ratio.|60:1 min|
|00003b00| 69 6d 75 6d 09 0d 50 69 | 78 65 6c 20 70 69 74 63 |imum..Pi|xel pitc|
|00003b10| 68 09 30 2e 32 36 37 20 | 28 68 69 67 68 29 20 62 |h.0.267 |(high) b|
|00003b20| 79 20 30 2e 32 37 30 20 | 28 77 69 64 65 29 20 3d |y 0.270 |(wide) =|
|00003b30| 20 52 2b 47 2b 42 20 3d | 20 31 20 70 69 78 65 6c | R+G+B =| 1 pixel|
|00003b40| 09 0d 50 69 78 65 6c 20 | 63 6f 6e 66 69 67 75 72 |..Pixel |configur|
|00003b50| 61 74 69 6f 6e 09 52 2c | 20 47 2c 20 42 20 76 65 |ation.R,| G, B ve|
|00003b60| 72 74 69 63 61 6c 20 73 | 74 72 69 70 65 73 09 0d |rtical s|tripes..|
|00003b70| 54 6f 74 61 6c 20 70 69 | 78 65 6c 20 6f 6e 2f 6f |Total pi|xel on/o|
|00003b80| 66 66 20 73 77 69 74 63 | 68 69 6e 67 20 73 70 65 |ff switc|hing spe|
|00003b90| 65 64 20 6f 72 20 72 65 | 73 70 6f 6e 73 65 20 74 |ed or re|sponse t|
|00003ba0| 69 6d 65 09 3c 38 30 20 | 6d 73 20 09 0d 53 75 72 |ime.<80 |ms ..Sur|
|00003bb0| 66 61 63 65 20 74 72 65 | 61 74 6d 65 6e 74 09 41 |face tre|atment.A|
|00003bc0| 6e 74 69 67 6c 61 72 65 | 20 70 6f 6c 61 72 69 7a |ntiglare| polariz|
|00003bd0| 65 72 20 61 74 20 32 48 | 20 70 65 6e 63 69 6c 20 |er at 2H| pencil |
|00003be0| 68 61 72 64 6e 65 73 73 | 09 0d 42 61 63 6b 6c 69 |hardness|..Backli|
|00003bf0| 67 68 74 2f 43 43 46 4c | 09 49 6e 74 65 67 72 61 |ght/CCFL|.Integra|
|00003c00| 74 65 64 20 62 61 63 6b | 6c 69 67 68 74 20 73 79 |ted back|light sy|
|00003c10| 73 74 65 6d 2c 20 77 69 | 74 68 20 74 79 70 69 63 |stem, wi|th typic|
|00003c20| 61 6c 20 52 4d 53 20 6f | 70 65 72 61 74 69 6e 67 |al RMS o|perating|
|00003c30| 20 76 61 6c 75 65 73 20 | 6f 66 20 34 37 30 20 56 | values |of 470 V|
|00003c40| 72 6d 73 20 61 74 20 35 | 2e 35 20 6d 41 09 0d 0d |rms at 5|.5 mA...|
|00003c50| 0d 43 68 61 6e 67 65 73 | 20 6f 6e 20 4d 61 69 6e |.Changes| on Main|
|00003c60| 20 4c 6f 67 69 63 20 42 | 6f 61 72 64 0d 0d 54 68 | Logic B|oard..Th|
|00003c70| 65 20 6f 75 74 6c 69 6e | 65 20 6f 66 20 74 68 65 |e outlin|e of the|
|00003c80| 20 50 6f 77 65 72 42 6f | 6f 6b 20 44 75 6f 20 32 | PowerBo|ok Duo 2|
|00003c90| 37 30 63 20 63 6f 6d 70 | 75 74 65 72 d5 73 20 6d |70c comp|uter.s m|
|00003ca0| 61 69 6e 20 6c 6f 67 69 | 63 20 62 6f 61 72 64 20 |ain logi|c board |
|00003cb0| 69 73 20 69 64 65 6e 74 | 69 63 61 6c 20 74 6f 20 |is ident|ical to |
|00003cc0| 74 68 65 20 6f 75 74 6c | 69 6e 65 20 6f 66 20 74 |the outl|ine of t|
|00003cd0| 68 65 20 6d 61 69 6e 20 | 6c 6f 67 69 63 20 62 6f |he main |logic bo|
|00003ce0| 61 72 64 20 69 6e 20 74 | 68 65 20 50 6f 77 65 72 |ard in t|he Power|
|00003cf0| 42 6f 6f 6b 20 44 75 6f | 2e 20 48 6f 77 65 76 65 |Book Duo|. Howeve|
|00003d00| 72 2c 20 74 68 65 72 65 | 20 61 72 65 20 73 65 76 |r, there| are sev|
|00003d10| 65 72 61 6c 20 63 6f 6d | 70 6f 6e 65 6e 74 20 63 |eral com|ponent c|
|00003d20| 68 61 6e 67 65 73 2c 20 | 61 73 20 64 65 73 63 72 |hanges, |as descr|
|00003d30| 69 62 65 64 20 62 65 6c | 6f 77 2e 20 46 69 67 75 |ibed bel|ow. Figu|
|00003d40| 72 65 20 32 2d 31 20 73 | 68 6f 77 73 20 61 20 76 |re 2-1 s|hows a v|
|00003d50| 69 65 77 20 6f 66 20 74 | 68 65 20 6d 61 69 6e 20 |iew of t|he main |
|00003d60| 6c 6f 67 69 63 20 62 6f | 61 72 64 2c 20 77 69 74 |logic bo|ard, wit|
|00003d70| 68 20 6e 65 77 20 63 6f | 6d 70 6f 6e 65 6e 74 73 |h new co|mponents|
|00003d80| 20 73 68 61 64 65 64 2e | 20 0d 54 68 65 20 63 68 | shaded.| .The ch|
|00003d90| 61 6e 67 65 73 20 74 6f | 20 74 68 65 20 62 6f 61 |anges to| the boa|
|00003da0| 72 64 20 69 6e 63 6c 75 | 64 65 0d 6e 09 61 6e 20 |rd inclu|de.n.an |
|00003db0| 6f 6e 2d 62 6f 61 72 64 | 20 66 6c 6f 61 74 69 6e |on-board| floatin|
|00003dc0| 67 2d 70 6f 69 6e 74 20 | 75 6e 69 74 0d 6e 09 72 |g-point |unit.n.r|
|00003dd0| 65 70 6c 61 63 65 6d 65 | 6e 74 20 6f 66 20 74 68 |eplaceme|nt of th|
|00003de0| 65 20 47 53 43 20 77 69 | 74 68 20 74 68 65 20 43 |e GSC wi|th the C|
|00003df0| 53 43 0d 6e 09 72 65 61 | 72 72 61 6e 67 65 6d 65 |SC.n.rea|rrangeme|
|00003e00| 6e 74 20 6f 66 20 74 68 | 65 20 6f 6e 2d 62 6f 61 |nt of th|e on-boa|
|00003e10| 72 64 20 44 52 41 4d 0d | 46 69 67 75 72 65 20 32 |rd DRAM.|Figure 2|
|00003e20| 2d 31 09 50 6f 77 65 72 | 42 6f 6f 6b 20 44 75 6f |-1.Power|Book Duo|
|00003e30| 20 32 37 30 63 20 6d 61 | 69 6e 20 6c 6f 67 69 63 | 270c ma|in logic|
|00003e40| 20 62 6f 61 72 64 0d 0d | 49 6e 74 65 67 72 61 74 | board..|Integrat|
|00003e50| 65 64 20 46 6c 6f 61 74 | 69 6e 67 2d 50 6f 69 6e |ed Float|ing-Poin|
|00003e60| 74 20 55 6e 69 74 0d 0d | 54 68 65 20 50 6f 77 65 |t Unit..|The Powe|
|00003e70| 72 42 6f 6f 6b 20 44 75 | 6f 20 32 37 30 63 20 63 |rBook Du|o 270c c|
|00003e80| 6f 6d 70 75 74 65 72 20 | 68 61 73 20 61 6e 20 69 |omputer |has an i|
|00003e90| 6e 74 65 67 72 61 74 65 | 64 20 46 50 55 20 6d 6f |ntegrate|d FPU mo|
|00003ea0| 75 6e 74 65 64 20 6f 6e | 20 74 68 65 20 6d 61 69 |unted on| the mai|
|00003eb0| 6e 20 6c 6f 67 69 63 20 | 62 6f 61 72 64 20 69 6e |n logic |board in|
|00003ec0| 20 61 20 50 4c 43 43 20 | 73 6f 63 6b 65 74 2e 20 | a PLCC |socket. |
|00003ed0| 54 68 65 20 46 50 55 20 | 69 73 20 61 20 36 38 38 |The FPU |is a 688|
|00003ee0| 38 32 20 64 65 76 69 63 | 65 2e 20 46 69 67 75 72 |82 devic|e. Figur|
|00003ef0| 65 20 32 2d 31 20 73 68 | 6f 77 73 20 74 68 65 20 |e 2-1 sh|ows the |
|00003f00| 70 6f 73 69 74 69 6f 6e | 20 6f 66 20 74 68 65 20 |position| of the |
|00003f10| 46 50 55 20 6f 6e 20 74 | 68 65 20 6c 6f 67 69 63 |FPU on t|he logic|
|00003f20| 20 62 6f 61 72 64 2e 20 | 0d 43 6f 6c 6f 72 20 43 | board. |.Color C|
|00003f30| 6f 6e 74 72 6f 6c 20 43 | 68 69 70 20 28 43 53 43 |ontrol C|hip (CSC|
|00003f40| 29 0d 0d 54 68 65 20 43 | 53 43 20 72 65 70 6c 61 |)..The C|SC repla|
|00003f50| 63 65 73 20 74 68 65 20 | 50 6f 77 65 72 42 6f 6f |ces the |PowerBoo|
|00003f60| 6b 20 44 75 6f d5 73 20 | 67 72 61 79 2d 73 63 61 |k Duo.s |gray-sca|
|00003f70| 6c 65 20 63 6f 6e 74 72 | 6f 6c 6c 65 72 20 28 47 |le contr|oller (G|
|00003f80| 53 43 29 2e 20 46 69 67 | 75 72 65 20 32 2d 31 20 |SC). Fig|ure 2-1 |
|00003f90| 73 68 6f 77 73 20 69 74 | 73 20 70 6f 73 69 74 69 |shows it|s positi|
|00003fa0| 6f 6e 20 6f 6e 20 74 68 | 65 20 6d 61 69 6e 20 6c |on on th|e main l|
|00003fb0| 6f 67 69 63 20 62 6f 61 | 72 64 2e 20 54 68 65 20 |ogic boa|rd. The |
|00003fc0| 43 53 43 20 69 73 20 61 | 20 31 34 34 2d 70 69 6e |CSC is a| 144-pin|
|00003fd0| 20 54 51 46 50 20 28 74 | 68 69 6e 20 71 75 61 64 | TQFP (t|hin quad|
|00003fe0| 20 66 6c 61 74 20 70 61 | 63 6b 29 20 64 65 76 69 | flat pa|ck) devi|
|00003ff0| 63 65 2e 20 49 74 20 73 | 75 70 70 6f 72 74 73 20 |ce. It s|upports |
|00004000| 46 53 54 4e 20 61 6e 64 | 20 54 46 54 20 4c 43 44 |FSTN and| TFT LCD|
|00004010| 20 64 69 73 70 6c 61 79 | 20 70 61 6e 65 6c 73 2c | display| panels,|
|00004020| 20 69 6e 20 63 6f 6c 6f | 72 20 6f 72 20 6d 6f 6e | in colo|r or mon|
|00004030| 6f 63 68 72 6f 6d 65 2f | 67 72 61 79 2c 20 69 6e |ochrome/|gray, in|
|00004040| 20 74 77 6f 20 72 61 73 | 74 65 72 20 6d 61 74 72 | two ras|ter matr|
|00004050| 69 78 20 63 6f 6e 66 69 | 67 75 72 61 74 69 6f 6e |ix confi|guration|
|00004060| 73 3a 20 36 34 30 20 78 | 20 34 38 30 20 61 6e 64 |s: 640 x| 480 and|
|00004070| 20 36 34 30 20 78 20 34 | 30 30 2c 20 69 6e 20 64 | 640 x 4|00, in d|
|00004080| 75 61 6c 2d 64 72 69 76 | 65 20 61 6e 64 20 73 69 |ual-driv|e and si|
|00004090| 6e 67 6c 65 2d 64 72 69 | 76 65 20 63 6f 6e 66 69 |ngle-dri|ve confi|
|000040a0| 67 75 72 61 74 69 6f 6e | 73 2e 20 49 74 20 73 75 |guration|s. It su|
|000040b0| 70 70 6f 72 74 73 20 74 | 68 65 20 66 6f 6c 6c 6f |pports t|he follo|
|000040c0| 77 69 6e 67 20 63 6f 6c | 6f 72 20 61 6e 64 20 67 |wing col|or and g|
|000040d0| 72 61 79 73 63 61 6c 65 | 20 6d 6f 64 65 73 3a 0d |rayscale| modes:.|
|000040e0| 6e 09 31 20 62 69 74 20 | 70 65 72 20 70 69 78 65 |n.1 bit |per pixe|
|000040f0| 6c 20 28 32 20 63 6f 6c | 6f 72 73 20 6f 72 20 67 |l (2 col|ors or g|
|00004100| 72 61 79 73 29 2c 20 62 | 6c 61 63 6b 2d 61 6e 64 |rays), b|lack-and|
|00004110| 2d 77 68 69 74 65 20 6d | 6f 6e 6f 63 68 72 6f 6d |-white m|onochrom|
|00004120| 65 0d 6e 09 32 20 62 69 | 74 73 20 70 65 72 20 70 |e.n.2 bi|ts per p|
|00004130| 69 78 65 6c 20 28 34 20 | 63 6f 6c 6f 72 73 20 6f |ixel (4 |colors o|
|00004140| 72 20 67 72 61 79 73 29 | 0d 6e 09 34 20 62 69 74 |r grays)|.n.4 bit|
|00004150| 73 20 70 65 72 20 70 69 | 78 65 6c 20 28 31 36 20 |s per pi|xel (16 |
|00004160| 63 6f 6c 6f 72 73 20 6f | 72 20 67 72 61 79 73 29 |colors o|r grays)|
|00004170| 0d 6e 09 38 20 62 69 74 | 73 20 70 65 72 20 70 69 |.n.8 bit|s per pi|
|00004180| 78 65 6c 20 28 32 35 36 | 20 63 6f 6c 6f 72 73 20 |xel (256| colors |
|00004190| 6f 72 20 67 72 61 79 73 | 29 20 0d 6e 09 31 36 20 |or grays|) .n.16 |
|000041a0| 62 69 74 73 20 70 65 72 | 20 70 69 78 65 6c 20 28 |bits per| pixel (|
|000041b0| 34 4b 20 63 6f 6c 6f 72 | 73 20 6f 72 20 67 72 61 |4K color|s or gra|
|000041c0| 79 73 29 2c 20 77 69 74 | 68 20 36 34 30 20 78 20 |ys), wit|h 640 x |
|000041d0| 34 30 30 20 64 69 73 70 | 6c 61 79 0d 44 52 41 4d |400 disp|lay.DRAM|
|000041e0| 20 43 6f 6e 66 69 67 75 | 72 61 74 69 6f 6e 0d 0d | Configu|ration..|
|000041f0| 54 68 65 20 50 6f 77 65 | 72 42 6f 6f 6b 20 44 75 |The Powe|rBook Du|
|00004200| 6f 20 32 37 30 63 20 6d | 61 69 6e 20 6c 6f 67 69 |o 270c m|ain logi|
|00004210| 63 20 62 6f 61 72 64 20 | 63 6f 6e 74 61 69 6e 73 |c board |contains|
|00004220| 20 38 20 44 52 41 4d 73 | 2c 20 77 68 69 63 68 20 | 8 DRAMs|, which |
|00004230| 6d 61 6b 65 20 75 70 20 | 74 68 65 20 34 20 4d 42 |make up |the 4 MB|
|00004240| 20 6f 66 20 6f 6e 2d 62 | 6f 61 72 64 20 44 52 41 | of on-b|oard DRA|
|00004250| 4d 2e 20 46 6f 75 72 20 | 6f 66 20 74 68 65 20 44 |M. Four |of the D|
|00004260| 52 41 4d 73 20 61 72 65 | 20 6c 6f 63 61 74 65 64 |RAMs are| located|
|00004270| 20 6f 6e 20 74 68 65 20 | 66 72 6f 6e 74 20 6f 66 | on the |front of|
|00004280| 20 74 68 65 20 6d 61 69 | 6e 20 6c 6f 67 69 63 20 | the mai|n logic |
|00004290| 62 6f 61 72 64 2c 20 61 | 6e 64 20 66 6f 75 72 20 |board, a|nd four |
|000042a0| 6f 6e 20 74 68 65 20 62 | 61 63 6b 20 6f 66 20 74 |on the b|ack of t|
|000042b0| 68 65 20 62 6f 61 72 64 | 2c 20 77 68 65 72 65 61 |he board|, wherea|
|000042c0| 73 20 6f 6e 20 74 68 65 | 20 6d 61 69 6e 20 6c 6f |s on the| main lo|
|000042d0| 67 69 63 20 62 6f 61 72 | 64 20 6f 66 20 50 6f 77 |gic boar|d of Pow|
|000042e0| 65 72 42 6f 6f 6b 20 44 | 75 6f 20 63 6f 6d 70 75 |erBook D|uo compu|
|000042f0| 74 65 72 2c 20 61 6c 6c | 20 65 69 67 68 74 20 44 |ter, all| eight D|
|00004300| 52 41 4d 73 20 61 72 65 | 20 6f 6e 20 74 68 65 20 |RAMs are| on the |
|00004310| 66 72 6f 6e 74 20 6f 66 | 20 74 68 65 20 62 6f 61 |front of| the boa|
|00004320| 72 64 2e 20 0d 0d 32 34 | 30 20 4d 42 20 48 61 72 |rd. ..24|0 MB Har|
|00004330| 64 20 44 69 73 6b 20 44 | 72 69 76 65 0d 0d 54 68 |d Disk D|rive..Th|
|00004340| 69 73 20 73 65 63 74 69 | 6f 6e 20 64 65 73 63 72 |is secti|on descr|
|00004350| 69 62 65 73 20 74 68 65 | 20 32 34 30 20 4d 42 20 |ibes the| 240 MB |
|00004360| 68 61 72 64 20 64 69 73 | 6b 20 64 72 69 76 65 2e |hard dis|k drive.|
|00004370| 20 49 74 20 69 6e 63 6c | 75 64 65 73 20 74 68 65 | It incl|udes the|
|00004380| 20 66 6f 6c 6c 6f 77 69 | 6e 67 20 69 6e 66 6f 72 | followi|ng infor|
|00004390| 6d 61 74 69 6f 6e 20 61 | 62 6f 75 74 20 74 68 65 |mation a|bout the|
|000043a0| 20 64 72 69 76 65 3a 0d | 6e 09 65 6e 76 69 72 6f | drive:.|n.enviro|
|000043b0| 6e 6d 65 6e 74 61 6c 20 | 73 70 65 63 69 66 69 63 |nmental |specific|
|000043c0| 61 74 69 6f 6e 73 0d 6e | 09 68 6f 75 73 69 6e 67 |ations.n|.housing|
|000043d0| 20 72 65 71 75 69 72 65 | 6d 65 6e 74 73 0d 6e 09 | require|ments.n.|
|000043e0| 69 6e 74 65 72 66 61 63 | 65 20 72 65 71 75 69 72 |interfac|e requir|
|000043f0| 65 6d 65 6e 74 73 0d 49 | 4d 50 4f 52 54 41 4e 54 |ements.I|MPORTANT|
|00004400| 0d 49 74 20 69 73 20 70 | 6f 73 73 69 62 6c 65 20 |.It is p|ossible |
|00004410| 74 6f 20 6d 6f 75 6e 74 | 20 61 20 31 36 30 20 4d |to mount| a 160 M|
|00004420| 42 20 68 61 72 64 20 64 | 69 73 6b 20 64 72 69 76 |B hard d|isk driv|
|00004430| 65 20 69 6e 20 74 68 65 | 20 50 6f 77 65 72 42 6f |e in the| PowerBo|
|00004440| 6f 6b 20 44 75 6f 20 32 | 37 30 63 20 68 6f 75 73 |ok Duo 2|70c hous|
|00004450| 69 6e 67 2e 20 54 68 65 | 20 70 68 79 73 69 63 61 |ing. The| physica|
|00004460| 6c 20 72 65 71 75 69 72 | 65 6d 65 6e 74 73 20 66 |l requir|ements f|
|00004470| 6f 72 20 74 68 69 73 20 | 64 72 69 76 65 20 61 72 |or this |drive ar|
|00004480| 65 20 74 68 65 20 73 61 | 6d 65 20 61 73 20 66 6f |e the sa|me as fo|
|00004490| 72 20 74 68 65 20 32 34 | 30 20 4d 42 20 64 72 69 |r the 24|0 MB dri|
|000044a0| 76 65 2c 20 61 6e 64 20 | 74 68 65 72 65 66 6f 72 |ve, and |therefor|
|000044b0| 65 20 74 68 65 20 31 36 | 30 20 4d 42 20 64 72 69 |e the 16|0 MB dri|
|000044c0| 76 65 20 69 73 20 6e 6f | 74 20 64 65 73 63 72 69 |ve is no|t descri|
|000044d0| 62 65 64 20 73 65 70 61 | 72 61 74 65 6c 79 20 69 |bed sepa|rately i|
|000044e0| 6e 20 74 68 69 73 20 73 | 65 63 74 69 6f 6e 2e 13 |n this s|ection..|
|000044f0| 73 0d 45 6e 76 69 72 6f | 6e 6d 65 6e 74 61 6c 20 |s.Enviro|nmental |
|00004500| 53 70 65 63 69 66 69 63 | 61 74 69 6f 6e 73 0d 0d |Specific|ations..|
|00004510| 54 61 62 6c 65 20 32 2d | 32 20 70 72 6f 76 69 64 |Table 2-|2 provid|
|00004520| 65 73 20 61 20 73 75 6d | 6d 61 72 79 20 6f 66 20 |es a sum|mary of |
|00004530| 65 6e 76 69 72 6f 6e 6d | 65 6e 74 61 6c 20 73 70 |environm|ental sp|
|00004540| 65 63 69 66 69 63 61 74 | 69 6f 6e 73 20 66 6f 72 |ecificat|ions for|
|00004550| 20 74 68 65 20 32 34 30 | 20 4d 42 20 68 61 72 64 | the 240| MB hard|
|00004560| 20 64 69 73 6b 20 64 72 | 69 76 65 2e 0d 54 61 62 | disk dr|ive..Tab|
|00004570| 6c 65 20 32 2d 32 09 45 | 6e 76 69 72 6f 6e 6d 65 |le 2-2.E|nvironme|
|00004580| 6e 74 61 6c 20 73 70 65 | 63 69 66 69 63 61 74 69 |ntal spe|cificati|
|00004590| 6f 6e 73 20 66 6f 72 20 | 32 34 30 20 4d 42 20 68 |ons for |240 MB h|
|000045a0| 61 72 64 20 64 69 73 6b | 20 64 72 69 76 65 28 63 |ard disk| drive(c|
|000045b0| 6f 6e 74 69 6e 75 65 64 | 29 43 61 74 65 67 6f 72 |ontinued|)Categor|
|000045c0| 79 09 43 6f 6e 64 69 74 | 69 6f 6e 09 53 70 65 63 |y.Condit|ion.Spec|
|000045d0| 69 66 69 63 61 74 69 6f | 6e 09 0d 54 65 6d 70 65 |ificatio|n..Tempe|
|000045e0| 72 61 74 75 72 65 20 6f | 66 20 61 6d 62 69 65 6e |rature o|f ambien|
|000045f0| 74 20 61 69 72 20 69 6e | 73 69 64 65 20 61 20 6c |t air in|side a l|
|00004600| 6f 77 20 61 69 72 66 6c | 6f 77 20 74 68 65 72 6d |ow airfl|ow therm|
|00004610| 61 6c 20 63 68 61 6d 62 | 65 72 2c 20 6e 6f 6e 2d |al chamb|er, non-|
|00004620| 63 6f 6e 64 65 6e 73 69 | 6e 67 09 4f 70 65 72 61 |condensi|ng.Opera|
|00004630| 74 69 6e 67 20 6c 69 6d | 69 74 73 3a 14 4e 6f 6e |ting lim|its:.Non|
|00004640| 6f 70 65 72 61 74 69 6e | 67 20 61 6e 64 20 73 74 |operatin|g and st|
|00004650| 6f 72 61 67 65 3a 09 12 | 35 20 74 6f 20 35 35 20 |orage:..|5 to 55 |
|00004660| 64 65 67 72 65 65 73 20 | 43 2d 34 30 20 74 6f 20 |degrees |C-40 to |
|00004670| 36 30 20 64 65 67 72 65 | 65 73 20 43 09 0d 09 09 |60 degre|es C....|
|00004680| 0d 63 6f 6e 74 69 6e 75 | 65 64 09 0d 54 65 6d 70 |.continu|ed..Temp|
|00004690| 65 72 61 74 75 72 65 20 | 67 72 61 64 69 65 6e 74 |erature |gradient|
|000046a0| 09 4f 70 65 72 61 74 69 | 6e 67 3a 14 4e 6f 6e 2d |.Operati|ng:.Non-|
|000046b0| 6f 70 65 72 61 74 69 6e | 67 3a 09 32 30 20 64 65 |operatin|g:.20 de|
|000046c0| 67 72 65 65 73 20 43 20 | 70 65 72 20 68 6f 75 72 |grees C |per hour|
|000046d0| 42 65 6c 6f 77 20 72 61 | 74 65 20 63 61 75 73 69 |Below ra|te causi|
|000046e0| 6e 67 20 63 6f 6e 64 65 | 6e 73 61 74 69 6f 6e 09 |ng conde|nsation.|
|000046f0| 0d 52 65 6c 61 74 69 76 | 65 20 68 75 6d 69 64 69 |.Relativ|e humidi|
|00004700| 74 79 09 4f 70 65 72 61 | 74 69 6e 67 3a 14 0d 0d |ty.Opera|ting:...|
|00004710| 4e 6f 6e 2d 6f 70 65 72 | 61 74 69 6e 67 3a 09 31 |Non-oper|ating:.1|
|00004720| 30 2d 39 30 25 2c 20 6e | 6f 6e 63 6f 6e 64 65 6e |0-90%, n|onconden|
|00004730| 73 69 6e 67 2c 20 6d 61 | 78 69 6d 75 6d 20 77 65 |sing, ma|ximum we|
|00004740| 74 20 62 75 6c 62 20 32 | 30 20 64 65 67 72 65 65 |t bulb 2|0 degree|
|00004750| 73 20 43 4e 6f 6e 2d 63 | 6f 6e 64 65 6e 73 69 6e |s CNon-c|ondensin|
|00004760| 67 2c 20 6d 61 78 69 6d | 75 6d 20 77 65 74 20 62 |g, maxim|um wet b|
|00004770| 75 6c 62 20 33 35 20 64 | 65 67 72 65 65 73 20 43 |ulb 35 d|egrees C|
|00004780| 09 0d 41 6c 74 69 74 75 | 64 65 09 4f 70 65 72 61 |..Altitu|de.Opera|
|00004790| 74 69 6e 67 3a 14 53 68 | 69 70 70 69 6e 67 3a 09 |ting:.Sh|ipping:.|
|000047a0| 2d 32 30 30 20 74 6f 20 | 31 35 2c 30 30 30 20 66 |-200 to |15,000 f|
|000047b0| 65 65 74 2d 32 30 30 20 | 74 6f 20 31 35 2c 30 30 |eet-200 |to 15,00|
|000047c0| 30 20 66 65 65 74 09 0d | 0d 48 6f 75 73 69 6e 67 |0 feet..|.Housing|
|000047d0| 20 52 65 71 75 69 72 65 | 6d 65 6e 74 73 0d 0d 54 | Require|ments..T|
|000047e0| 68 65 20 50 6f 77 65 72 | 42 6f 6f 6b 20 44 75 6f |he Power|Book Duo|
|000047f0| 20 32 37 30 63 20 63 6f | 6d 70 75 74 65 72 20 61 | 270c co|mputer a|
|00004800| 63 63 6f 6d 6d 6f 64 61 | 74 65 73 20 65 69 74 68 |ccommoda|tes eith|
|00004810| 65 72 20 61 20 31 36 30 | 20 4d 42 20 68 61 72 64 |er a 160| MB hard|
|00004820| 20 64 69 73 6b 20 64 72 | 69 76 65 20 6f 72 20 61 | disk dr|ive or a|
|00004830| 20 32 34 30 20 4d 42 20 | 64 72 69 76 65 2e 20 54 | 240 MB |drive. T|
|00004840| 68 65 20 68 61 72 64 20 | 64 69 73 6b 20 64 72 69 |he hard |disk dri|
|00004850| 76 65 20 69 73 20 68 6f | 75 73 65 64 20 69 6e 20 |ve is ho|used in |
|00004860| 74 68 65 20 50 6f 77 65 | 72 42 6f 6f 6b 20 44 75 |the Powe|rBook Du|
|00004870| 6f 20 32 37 30 63 20 63 | 6c 61 6d 73 68 65 6c 6c |o 270c c|lamshell|
|00004880| 20 68 6f 75 73 69 6e 67 | 2e 20 0d 46 69 67 75 72 | housing|. .Figur|
|00004890| 65 20 32 2d 32 20 73 68 | 6f 77 73 20 74 68 65 20 |e 2-2 sh|ows the |
|000048a0| 64 69 6d 65 6e 73 69 6f | 6e 73 20 6f 66 20 74 68 |dimensio|ns of th|
|000048b0| 65 20 32 34 30 20 4d 42 | 20 68 61 72 64 20 64 69 |e 240 MB| hard di|
|000048c0| 73 6b 2e 20 54 68 65 20 | 68 65 69 67 68 74 20 6f |sk. The |height o|
|000048d0| 66 20 74 68 65 20 64 69 | 73 6b 20 64 72 69 76 65 |f the di|sk drive|
|000048e0| 20 69 73 20 63 72 69 74 | 69 63 61 6c 2c 20 61 6e | is crit|ical, an|
|000048f0| 64 20 69 74 20 6d 75 73 | 74 20 6e 6f 74 20 65 78 |d it mus|t not ex|
|00004900| 63 65 65 64 20 31 39 6d | 6d 20 28 30 2e 37 35 29 |ceed 19m|m (0.75)|
|00004910| 20 69 6e 63 68 65 73 2e | 20 42 6f 74 68 20 64 72 | inches.| Both dr|
|00004920| 69 76 65 73 20 61 72 65 | 20 63 75 72 72 65 6e 74 |ives are| current|
|00004930| 6c 79 20 31 39 20 6d 69 | 6c 6c 69 6d 65 74 65 72 |ly 19 mi|llimeter|
|00004940| 73 20 74 61 6c 6c 2c 20 | 62 75 74 20 65 76 65 6e |s tall, |but even|
|00004950| 74 75 61 6c 6c 79 20 74 | 68 65 20 31 36 30 20 4d |tually t|he 160 M|
|00004960| 42 20 64 72 69 76 65 20 | 77 69 6c 6c 20 62 65 20 |B drive |will be |
|00004970| 61 76 61 69 6c 61 62 6c | 65 20 69 6e 20 31 32 2e |availabl|e in 12.|
|00004980| 35 2d 6d 69 6c 6c 69 6d | 65 74 65 72 20 61 6e 64 |5-millim|eter and|
|00004990| 20 31 37 2d 6d 69 6c 6c | 69 6d 65 74 65 72 20 76 | 17-mill|imeter v|
|000049a0| 65 72 73 69 6f 6e 73 2e | 20 0d 54 68 65 20 64 72 |ersions.| .The dr|
|000049b0| 69 76 65 20 6d 61 79 20 | 62 65 20 6d 6f 75 6e 74 |ive may |be mount|
|000049c0| 65 64 20 74 68 72 6f 75 | 67 68 20 65 69 74 68 65 |ed throu|gh eithe|
|000049d0| 72 20 73 69 64 65 2d 6d | 6f 75 6e 74 69 6e 67 20 |r side-m|ounting |
|000049e0| 6f 72 20 62 6f 74 74 6f | 6d 2d 6d 6f 75 6e 74 69 |or botto|m-mounti|
|000049f0| 6e 67 20 68 6f 6c 65 73 | 20 6d 61 63 68 69 6e 65 |ng holes| machine|
|00004a00| 64 20 69 6e 74 6f 20 74 | 68 65 20 64 69 73 6b 20 |d into t|he disk |
|00004a10| 64 72 69 76 65 20 68 6f | 75 73 69 6e 67 2e 20 41 |drive ho|using. A|
|00004a20| 20 62 72 61 63 6b 65 74 | 2c 20 73 68 6f 77 6e 20 | bracket|, shown |
|00004a30| 69 6e 20 46 69 67 75 72 | 65 20 32 2d 33 2c 20 69 |in Figur|e 2-3, i|
|00004a40| 73 20 61 74 74 61 63 68 | 65 64 20 74 6f 20 74 68 |s attach|ed to th|
|00004a50| 65 20 73 69 64 65 20 6f | 66 20 74 68 65 20 68 61 |e side o|f the ha|
|00004a60| 72 64 20 64 69 73 6b 20 | 61 6e 64 20 68 6f 6c 64 |rd disk |and hold|
|00004a70| 73 20 69 74 20 69 6e 20 | 70 6c 61 63 65 20 69 6e |s it in |place in|
|00004a80| 20 74 68 65 20 50 6f 77 | 65 72 42 6f 6f 6b 20 44 | the Pow|erBook D|
|00004a90| 75 6f 20 32 37 30 63 20 | 63 6f 6d 70 75 74 65 72 |uo 270c |computer|
|00004aa0| 20 68 6f 75 73 69 6e 67 | 2e 0d 46 69 67 75 72 65 | housing|..Figure|
|00004ab0| 20 32 2d 32 09 48 61 72 | 64 20 64 69 73 6b 20 64 | 2-2.Har|d disk d|
|00004ac0| 72 69 76 65 20 68 6f 75 | 73 69 6e 67 0d 0d 46 69 |rive hou|sing..Fi|
|00004ad0| 67 75 72 65 20 32 2d 33 | 09 42 72 61 63 6b 65 74 |gure 2-3|.Bracket|
|00004ae0| 20 66 6f 72 20 74 68 65 | 20 68 61 72 64 20 64 69 | for the| hard di|
|00004af0| 73 6b 20 64 72 69 76 65 | 0d 0d 48 61 72 64 20 44 |sk drive|..Hard D|
|00004b00| 69 73 6b 20 49 6e 74 65 | 72 66 61 63 65 0d 0d 54 |isk Inte|rface..T|
|00004b10| 68 69 73 20 73 65 63 74 | 69 6f 6e 20 64 65 73 63 |his sect|ion desc|
|00004b20| 72 69 62 65 73 20 74 68 | 65 20 69 6e 74 65 72 66 |ribes th|e interf|
|00004b30| 61 63 65 20 72 65 71 75 | 69 72 65 6d 65 6e 74 73 |ace requ|irements|
|00004b40| 20 66 6f 72 20 74 68 65 | 20 32 34 30 20 4d 42 20 | for the| 240 MB |
|00004b50| 68 61 72 64 20 64 69 73 | 6b 20 64 72 69 76 65 2e |hard dis|k drive.|
|00004b60| 20 49 74 20 70 72 6f 76 | 69 64 65 73 20 73 70 65 | It prov|ides spe|
|00004b70| 63 69 66 69 63 61 74 69 | 6f 6e 73 20 61 6e 64 20 |cificati|ons and |
|00004b80| 73 69 67 6e 61 6c 20 61 | 73 73 69 67 6e 6d 65 6e |signal a|ssignmen|
|00004b90| 74 73 20 66 6f 72 20 74 | 68 65 20 53 43 53 49 20 |ts for t|he SCSI |
|00004ba0| 63 6f 6e 6e 65 63 74 6f | 72 2e 20 0d 49 6e 74 65 |connecto|r. .Inte|
|00004bb0| 72 66 61 63 65 20 52 65 | 71 75 69 72 65 6d 65 6e |rface Re|quiremen|
|00004bc0| 74 73 0d 0d 54 68 65 20 | 69 6e 74 65 72 66 61 63 |ts..The |interfac|
|00004bd0| 65 20 74 6f 20 74 68 65 | 20 68 61 72 64 20 64 69 |e to the| hard di|
|00004be0| 73 6b 20 69 73 20 61 6e | 20 41 4e 53 43 20 58 33 |sk is an| ANSC X3|
|00004bf0| 54 39 2e 32 20 53 43 53 | 49 20 69 6e 74 65 72 66 |T9.2 SCS|I interf|
|00004c00| 61 63 65 2e 20 49 74 20 | 69 6d 70 6c 65 6d 65 6e |ace. It |implemen|
|00004c10| 74 73 20 74 68 65 20 41 | 70 70 6c 65 20 53 43 53 |ts the A|pple SCS|
|00004c20| 49 20 63 6f 6d 6d 61 6e | 64 20 70 72 6f 74 6f 63 |I comman|d protoc|
|00004c30| 6f 6c 20 61 6e 64 20 64 | 69 61 67 6e 6f 73 74 69 |ol and d|iagnosti|
|00004c40| 63 20 63 6f 6d 6d 61 6e | 64 20 73 65 74 2e 20 42 |c comman|d set. B|
|00004c50| 75 66 66 65 72 20 73 69 | 7a 65 20 73 75 70 70 6f |uffer si|ze suppo|
|00004c60| 72 74 73 20 61 20 31 3a | 31 20 69 6e 74 65 72 6c |rts a 1:|1 interl|
|00004c70| 65 61 76 65 2e 20 54 68 | 65 20 64 72 69 76 65 20 |eave. Th|e drive |
|00004c80| 73 75 70 70 6f 72 74 73 | 20 74 68 65 20 53 43 53 |supports| the SCS|
|00004c90| 49 20 61 73 79 6e 63 68 | 72 6f 6e 6f 75 73 20 69 |I asynch|ronous i|
|00004ca0| 6e 66 6f 72 6d 61 74 69 | 6f 6e 20 74 72 61 6e 73 |nformati|on trans|
|00004cb0| 66 65 72 2e 20 54 68 65 | 20 74 72 61 6e 73 66 65 |fer. The| transfe|
|00004cc0| 72 20 72 61 74 65 20 69 | 73 20 31 2e 35 20 4d 42 |r rate i|s 1.5 MB|
|00004cd0| 20 70 65 72 20 73 65 63 | 6f 6e 64 20 28 6d 69 6e | per sec|ond (min|
|00004ce0| 69 6d 75 6d 29 2e 20 41 | 6e 20 65 6d 62 65 64 64 |imum). A|n embedd|
|00004cf0| 65 64 20 63 6f 6e 74 72 | 6f 6c 6c 65 72 20 70 72 |ed contr|oller pr|
|00004d00| 6f 76 69 64 65 73 20 65 | 72 72 6f 72 20 72 65 63 |ovides e|rror rec|
|00004d10| 6f 76 65 72 79 20 61 6c | 67 6f 72 69 74 68 6d 73 |overy al|gorithms|
|00004d20| 2c 20 77 68 69 63 68 20 | 69 6e 63 6c 75 64 65 20 |, which |include |
|00004d30| 65 72 72 6f 72 20 63 68 | 65 63 6b 20 61 6e 64 20 |error ch|eck and |
|00004d40| 63 6f 72 72 65 63 74 69 | 6f 6e 20 28 45 43 43 29 |correcti|on (ECC)|
|00004d50| 2c 20 73 65 65 6b 20 72 | 65 74 72 79 2c 20 68 65 |, seek r|etry, he|
|00004d60| 61 64 20 6f 66 66 73 65 | 74 20 28 66 6f 72 20 6f |ad offse|t (for o|
|00004d70| 70 65 6e 2d 6c 6f 6f 70 | 20 73 79 73 74 65 6d 73 |pen-loop| systems|
|00004d80| 29 2c 20 61 6e 64 20 64 | 65 66 65 63 74 20 6d 61 |), and d|efect ma|
|00004d90| 6e 61 67 65 6d 65 6e 74 | 2e 20 54 68 65 20 53 43 |nagement|. The SC|
|00004da0| 53 49 20 69 6e 74 65 72 | 66 61 63 65 20 70 72 6f |SI inter|face pro|
|00004db0| 76 69 64 65 73 20 61 20 | 53 43 53 49 20 49 44 20 |vides a |SCSI ID |
|00004dc0| 74 68 61 74 20 63 61 6e | 20 62 65 20 64 65 74 65 |that can| be dete|
|00004dd0| 63 74 65 64 20 62 79 20 | 74 68 65 20 68 61 72 64 |cted by |the hard|
|00004de0| 77 61 72 65 2e 20 0d 53 | 43 53 49 20 43 6f 6e 6e |ware. .S|CSI Conn|
|00004df0| 65 63 74 6f 72 73 0d 0d | 54 68 65 20 64 69 73 6b |ectors..|The disk|
|00004e00| 20 64 72 69 76 65 20 53 | 43 53 49 20 63 6f 6e 6e | drive S|CSI conn|
|00004e10| 65 63 74 6f 72 20 63 6f | 6d 70 72 69 73 65 73 20 |ector co|mprises |
|00004e20| 74 77 6f 20 73 65 67 6d | 65 6e 74 73 2c 20 61 73 |two segm|ents, as|
|00004e30| 20 73 68 6f 77 6e 20 69 | 6e 20 0d 46 69 67 75 72 | shown i|n .Figur|
|00004e40| 65 20 32 2d 34 2e 20 54 | 68 65 20 66 69 72 73 74 |e 2-4. T|he first|
|00004e50| 20 73 65 67 6d 65 6e 74 | 20 68 61 73 20 34 30 20 | segment| has 40 |
|00004e60| 70 69 6e 73 2c 20 61 72 | 72 61 6e 67 65 64 20 69 |pins, ar|ranged i|
|00004e70| 6e 20 74 77 6f 20 72 6f | 77 73 2e 20 49 74 20 74 |n two ro|ws. It t|
|00004e80| 72 61 6e 73 66 65 72 73 | 20 53 43 53 49 20 73 69 |ransfers| SCSI si|
|00004e90| 67 6e 61 6c 73 20 62 65 | 74 77 65 65 6e 20 74 68 |gnals be|tween th|
|00004ea0| 65 20 43 50 55 20 61 6e | 64 20 74 68 65 20 68 61 |e CPU an|d the ha|
|00004eb0| 72 64 20 64 69 73 6b 20 | 64 72 69 76 65 2c 20 61 |rd disk |drive, a|
|00004ec0| 6e 64 20 69 74 20 61 6c | 73 6f 20 73 75 70 70 6c |nd it al|so suppl|
|00004ed0| 69 65 73 20 70 6f 77 65 | 72 20 74 6f 20 74 68 65 |ies powe|r to the|
|00004ee0| 20 64 72 69 76 65 2e 20 | 54 68 65 20 73 65 63 6f | drive. |The seco|
|00004ef0| 6e 64 20 73 65 67 6d 65 | 6e 74 20 6f 66 20 74 68 |nd segme|nt of th|
|00004f00| 65 20 63 6f 6e 6e 65 63 | 74 6f 72 20 61 63 63 6f |e connec|tor acco|
|00004f10| 6d 6d 6f 64 61 74 65 73 | 20 74 68 65 20 53 43 53 |mmodates| the SCS|
|00004f20| 49 20 49 44 2e 20 0d 46 | 69 67 75 72 65 20 32 2d |I ID. .F|igure 2-|
|00004f30| 34 09 48 61 72 64 20 64 | 69 73 6b 20 64 72 69 76 |4.Hard d|isk driv|
|00004f40| 65 20 53 43 53 49 20 63 | 6f 6e 6e 65 63 74 6f 72 |e SCSI c|onnector|
|00004f50| 0d 0d 54 61 62 6c 65 20 | 32 2d 33 20 6c 69 73 74 |..Table |2-3 list|
|00004f60| 73 20 61 6e 64 20 64 65 | 73 63 72 69 62 65 73 20 |s and de|scribes |
|00004f70| 74 68 65 20 69 6e 74 65 | 72 66 61 63 65 20 73 69 |the inte|rface si|
|00004f80| 67 6e 61 6c 73 20 66 6f | 72 20 74 68 65 20 34 30 |gnals fo|r the 40|
|00004f90| 2d 70 69 6e 20 73 65 67 | 6d 65 6e 74 20 6f 66 20 |-pin seg|ment of |
|00004fa0| 74 68 65 20 63 6f 6e 6e | 65 63 74 6f 72 2e 20 0d |the conn|ector. .|
|00004fb0| 54 61 62 6c 65 20 32 2d | 33 09 48 61 72 64 20 64 |Table 2-|3.Hard d|
|00004fc0| 69 73 6b 20 64 72 69 76 | 65 20 53 43 53 49 20 63 |isk driv|e SCSI c|
|00004fd0| 6f 6e 6e 65 63 74 6f 72 | 20 73 69 67 6e 61 6c 20 |onnector| signal |
|00004fe0| 61 73 73 69 67 6e 6d 65 | 6e 74 73 20 d0 20 53 43 |assignme|nts . SC|
|00004ff0| 53 49 20 61 6e 64 20 70 | 6f 77 65 72 0d 50 69 6e |SI and p|ower.Pin|
|00005000| 09 53 69 67 6e 61 6c 20 | 6e 61 6d 65 09 44 65 73 |.Signal |name.Des|
|00005010| 63 72 69 70 74 69 6f 6e | 09 0d 31 2c 20 32 09 2b |cription|..1, 2.+|
|00005020| 35 56 20 6c 6f 67 69 63 | 09 2b 35 20 56 20 70 6f |5V logic|.+5 V po|
|00005030| 77 65 72 20 73 75 70 70 | 6c 79 09 0d 33 2c 20 34 |wer supp|ly..3, 4|
|00005040| 09 4c 6f 67 69 63 20 72 | 65 74 75 72 6e 09 2b 35 |.Logic r|eturn.+5|
|00005050| 20 56 20 72 65 74 75 72 | 6e 09 0d 35 2c 20 37 2c | V retur|n..5, 7,|
|00005060| 20 39 2c 20 31 31 2c 20 | 31 33 2c 20 31 35 2c 20 | 9, 11, |13, 15, |
|00005070| 31 39 2c 20 32 31 2c 20 | 32 33 2c 20 32 37 2c 20 |19, 21, |23, 27, |
|00005080| 33 31 2c 20 33 35 09 47 | 4e 44 09 47 72 6f 75 6e |31, 35.G|ND.Groun|
|00005090| 64 09 0d 36 09 2f 44 42 | 30 09 44 61 74 61 20 62 |d..6./DB|0.Data b|
|000050a0| 75 73 20 62 69 74 20 30 | 09 0d 38 09 2f 44 42 31 |us bit 0|..8./DB1|
|000050b0| 09 44 61 74 61 20 62 75 | 73 20 62 69 74 20 31 09 |.Data bu|s bit 1.|
|000050c0| 0d 31 30 09 2f 44 42 32 | 09 44 61 74 61 20 62 75 |.10./DB2|.Data bu|
|000050d0| 73 20 62 69 74 20 32 09 | 0d 31 32 09 2f 44 42 33 |s bit 2.|.12./DB3|
|000050e0| 09 44 61 74 61 20 62 75 | 73 20 62 69 74 20 33 09 |.Data bu|s bit 3.|
|000050f0| 0d 31 34 09 2f 44 42 34 | 09 44 61 74 61 20 62 75 |.14./DB4|.Data bu|
|00005100| 73 20 62 69 74 20 34 09 | 0d 31 36 09 2f 44 42 35 |s bit 4.|.16./DB5|
|00005110| 09 44 61 74 61 20 62 75 | 73 20 62 69 74 20 35 09 |.Data bu|s bit 5.|
|00005120| 0d 31 37 09 4b 45 59 09 | 4e 6f 74 20 63 6f 6e 6e |.17.KEY.|Not conn|
|00005130| 65 63 74 65 64 3b 20 75 | 73 65 64 20 61 73 20 63 |ected; u|sed as c|
|00005140| 6f 6e 6e 65 63 74 6f 72 | 20 6b 65 79 09 0d 31 38 |onnector| key..18|
|00005150| 09 2f 44 42 36 09 44 61 | 74 61 20 62 75 73 20 62 |./DB6.Da|ta bus b|
|00005160| 69 74 20 36 09 0d 32 30 | 09 2f 44 42 37 09 44 61 |it 6..20|./DB7.Da|
|00005170| 74 61 20 62 75 73 20 62 | 69 74 20 37 09 0d 32 32 |ta bus b|it 7..22|
|00005180| 09 2f 50 41 52 49 54 59 | 09 44 61 74 61 20 62 75 |./PARITY|.Data bu|
|00005190| 73 20 70 61 72 69 74 79 | 09 0d 32 34 09 54 45 52 |s parity|..24.TER|
|000051a0| 4d 20 50 57 52 09 54 65 | 72 6d 69 6e 61 74 6f 72 |M PWR.Te|rminator|
|000051b0| 20 70 6f 77 65 72 3b 20 | 70 75 6c 6c 73 20 75 70 | power; |pulls up|
|000051c0| 20 74 65 72 6d 69 6e 61 | 74 69 6f 6e 20 72 65 73 | termina|tion res|
|000051d0| 69 73 74 6f 72 73 20 66 | 6f 72 20 61 6c 6c 20 73 |istors f|or all s|
|000051e0| 69 67 6e 61 6c 20 6c 69 | 6e 65 73 09 0d 32 35 09 |ignal li|nes..25.|
|000051f0| 2f 41 54 4e 09 41 74 74 | 65 6e 74 69 6f 6e 20 69 |/ATN.Att|ention i|
|00005200| 6e 64 69 63 61 74 6f 72 | 09 0d 32 36 09 2f 42 53 |ndicator|..26./BS|
|00005210| 59 09 42 75 73 79 20 73 | 69 67 6e 61 6c 09 0d 32 |Y.Busy s|ignal..2|
|00005220| 38 09 2f 41 43 4b 20 09 | 41 63 6b 6e 6f 77 6c 65 |8./ACK .|Acknowle|
|00005230| 64 67 65 20 28 68 61 6e | 64 73 68 61 6b 65 20 73 |dge (han|dshake s|
|00005240| 69 67 6e 61 6c 29 3b 20 | 61 73 73 65 72 74 65 64 |ignal); |asserted|
|00005250| 20 69 6e 20 72 65 73 70 | 6f 6e 73 65 20 74 6f 20 | in resp|onse to |
|00005260| 61 20 72 65 71 75 65 73 | 74 20 66 6f 72 20 61 63 |a reques|t for ac|
|00005270| 63 65 73 73 20 28 2f 52 | 45 51 29 09 0d 32 39 09 |cess (/R|EQ)..29.|
|00005280| 2f 52 53 54 09 53 43 53 | 49 20 62 75 73 20 72 65 |/RST.SCS|I bus re|
|00005290| 73 65 74 09 0d 33 30 09 | 2f 4d 53 47 09 4d 65 73 |set..30.|/MSG.Mes|
|000052a0| 73 61 67 65 20 70 68 61 | 73 65 09 0d 33 32 09 2f |sage pha|se..32./|
|000052b0| 53 45 4c 09 53 43 53 49 | 20 73 65 6c 65 63 74 09 |SEL.SCSI| select.|
|000052c0| 0d 33 33 09 2f 49 2f 4f | 09 43 6f 6e 74 72 6f 6c |.33./I/O|.Control|
|000052d0| 73 20 74 68 65 20 64 69 | 72 65 63 74 69 6f 6e 20 |s the di|rection |
|000052e0| 6f 66 20 64 61 74 61 20 | 6d 6f 76 65 6d 65 6e 74 |of data |movement|
|000052f0| 3a 20 77 68 65 6e 20 74 | 68 69 73 20 73 69 67 6e |: when t|his sign|
|00005300| 61 6c 20 69 73 20 6c 6f | 77 2c 20 64 61 74 61 20 |al is lo|w, data |
|00005310| 69 73 20 6f 75 74 70 75 | 74 20 66 72 6f 6d 20 74 |is outpu|t from t|
|00005320| 68 65 20 64 69 73 6b 20 | 64 72 69 76 65 3b 20 77 |he disk |drive; w|
|00005330| 68 65 6e 20 69 74 20 69 | 73 20 68 69 67 68 2c 20 |hen it i|s high, |
|00005340| 64 61 74 61 20 69 73 20 | 69 6e 70 75 74 09 0d 33 |data is |input..3|
|00005350| 34 09 2f 43 2f 44 09 49 | 6e 64 69 63 61 74 65 73 |4./C/D.I|ndicates|
|00005360| 20 77 68 65 74 68 65 72 | 20 64 61 74 61 20 6f 72 | whether| data or|
|00005370| 20 63 6f 6e 74 72 6f 6c | 20 73 69 67 6e 61 6c 73 | control| signals|
|00005380| 20 61 72 65 20 6f 6e 20 | 74 68 65 20 53 43 53 49 | are on |the SCSI|
|00005390| 20 62 75 73 3a 20 77 68 | 65 6e 20 74 68 69 73 20 | bus: wh|en this |
|000053a0| 73 69 67 6e 61 6c 20 69 | 73 20 6c 6f 77 2c 20 64 |signal i|s low, d|
|000053b0| 61 74 61 20 69 73 20 6f | 6e 20 74 68 65 20 62 75 |ata is o|n the bu|
|000053c0| 73 3b 20 77 68 65 6e 20 | 69 74 20 69 73 20 68 69 |s; when |it is hi|
|000053d0| 67 68 2c 20 63 6f 6e 74 | 72 6f 6c 20 73 69 67 6e |gh, cont|rol sign|
|000053e0| 61 6c 73 20 61 72 65 20 | 6f 6e 20 74 68 65 20 62 |als are |on the b|
|000053f0| 75 73 09 0d 33 36 09 2f | 52 45 51 09 41 63 63 65 |us..36./|REQ.Acce|
|00005400| 73 73 20 72 65 71 75 65 | 73 74 3b 20 74 68 65 20 |ss reque|st; the |
|00005410| 43 50 55 20 61 73 73 65 | 72 74 73 20 74 68 69 73 |CPU asse|rts this|
|00005420| 20 73 69 67 6e 61 6c 20 | 74 6f 20 72 65 71 75 65 | signal |to reque|
|00005430| 73 74 20 61 63 63 65 73 | 73 20 74 6f 20 74 68 65 |st acces|s to the|
|00005440| 20 68 61 72 64 20 64 69 | 73 6b 20 09 0d 33 37 2c | hard di|sk ..37,|
|00005450| 20 33 38 09 4d 4f 54 4f | 52 20 52 45 54 09 52 65 | 38.MOTO|R RET.Re|
|00005460| 74 75 72 6e 20 66 6f 72 | 20 2b 35 20 56 20 70 6f |turn for| +5 V po|
|00005470| 77 65 72 20 73 75 70 70 | 6c 79 20 66 6f 72 20 6d |wer supp|ly for m|
|00005480| 6f 74 6f 72 09 0d 33 39 | 2c 20 34 30 09 2b 35 56 |otor..39|, 40.+5V|
|00005490| 20 4d 4f 54 4f 52 09 2b | 35 20 56 20 70 6f 77 65 | MOTOR.+|5 V powe|
|000054a0| 72 20 73 75 70 70 6c 79 | 20 66 6f 72 20 74 68 65 |r supply| for the|
|000054b0| 20 6d 6f 74 6f 72 09 0d | 0d 54 61 62 6c 65 20 32 | motor..|.Table 2|
|000054c0| 2d 34 20 6c 69 73 74 73 | 20 61 6e 64 20 64 65 73 |-4 lists| and des|
|000054d0| 63 72 69 62 65 73 20 74 | 68 65 20 69 6e 74 65 72 |cribes t|he inter|
|000054e0| 66 61 63 65 20 73 69 67 | 6e 61 6c 73 20 66 6f 72 |face sig|nals for|
|000054f0| 20 74 68 65 20 38 2d 70 | 69 6e 20 73 65 67 6d 65 | the 8-p|in segme|
|00005500| 6e 74 20 6f 66 20 74 68 | 65 20 63 6f 6e 6e 65 63 |nt of th|e connec|
|00005510| 74 6f 72 2e 0d 54 61 62 | 6c 65 20 32 2d 34 09 48 |tor..Tab|le 2-4.H|
|00005520| 61 72 64 20 64 69 73 6b | 20 64 72 69 76 65 20 53 |ard disk| drive S|
|00005530| 43 53 49 20 63 6f 6e 6e | 65 63 74 6f 72 20 73 69 |CSI conn|ector si|
|00005540| 67 6e 61 6c 20 61 73 73 | 69 67 6e 6d 65 6e 74 73 |gnal ass|ignments|
|00005550| 20 d0 20 53 43 53 49 20 | 49 44 0d 50 69 6e 20 09 | . SCSI |ID.Pin .|
|00005560| 53 69 67 6e 61 6c 20 6e | 61 6d 65 09 44 65 73 63 |Signal n|ame.Desc|
|00005570| 72 69 70 74 69 6f 6e 09 | 0d 31 2c 20 32 2c 20 33 |ription.|.1, 2, 3|
|00005580| 2c 20 34 2c 20 38 09 55 | 6e 75 73 65 64 09 54 68 |, 4, 8.U|nused.Th|
|00005590| 65 73 65 20 70 69 6e 73 | 20 61 72 65 20 6e 6f 74 |ese pins| are not|
|000055a0| 20 75 73 65 64 20 61 6e | 64 20 61 72 65 20 6e 6f | used an|d are no|
|000055b0| 74 20 63 6f 6e 6e 65 63 | 74 65 64 0d 20 65 6c 65 |t connec|ted. ele|
|000055c0| 63 74 72 69 63 61 6c 6c | 79 20 74 6f 20 74 68 65 |ctricall|y to the|
|000055d0| 20 43 50 55 20 09 0d 35 | 09 2f 49 44 31 09 53 43 | CPU ..5|./ID1.SC|
|000055e0| 53 49 20 49 44 20 31 09 | 0d 36 09 2f 49 44 32 09 |SI ID 1.|.6./ID2.|
|000055f0| 53 43 53 49 20 49 44 20 | 32 09 0d 37 09 2f 49 44 |SCSI ID |2..7./ID|
|00005600| 34 09 53 43 53 49 20 49 | 44 20 34 09 0d 0d 54 68 |4.SCSI I|D 4...Th|
|00005610| 65 20 69 6e 74 65 72 6e | 61 6c 20 68 61 72 64 20 |e intern|al hard |
|00005620| 64 69 73 6b 20 69 73 20 | 61 73 73 69 67 6e 65 64 |disk is |assigned|
|00005630| 20 61 20 53 43 53 49 20 | 49 44 20 6e 75 6d 62 65 | a SCSI |ID numbe|
|00005640| 72 20 28 30 2d 37 29 2e | 20 50 69 6e 73 20 35 2d |r (0-7).| Pins 5-|
|00005650| 37 20 6f 6e 20 74 68 65 | 20 53 43 53 49 20 63 6f |7 on the| SCSI co|
|00005660| 6e 6e 65 63 74 6f 72 20 | 61 72 65 20 65 6e 63 6f |nnector |are enco|
|00005670| 64 65 64 20 61 6e 64 20 | 61 6c 6c 6f 77 20 74 68 |ded and |allow th|
|00005680| 65 20 43 50 55 20 74 6f | 20 73 65 6c 65 63 74 20 |e CPU to| select |
|00005690| 74 68 65 20 61 70 70 72 | 6f 70 72 69 61 74 65 20 |the appr|opriate |
|000056a0| 64 65 76 69 63 65 2e 20 | 54 61 62 6c 65 20 32 2d |device. |Table 2-|
|000056b0| 35 20 73 68 6f 77 73 20 | 68 6f 77 20 74 68 65 20 |5 shows |how the |
|000056c0| 49 44 20 73 69 67 6e 61 | 6c 73 20 61 72 65 20 65 |ID signa|ls are e|
|000056d0| 6e 63 6f 64 65 64 2e 0d | 54 61 62 6c 65 20 32 2d |ncoded..|Table 2-|
|000056e0| 35 09 53 43 53 49 20 49 | 44 20 65 6e 63 6f 64 69 |5.SCSI I|D encodi|
|000056f0| 6e 67 0d 49 44 31 3a 20 | 50 69 6e 20 35 09 49 44 |ng.ID1: |Pin 5.ID|
|00005700| 32 3a 50 69 6e 20 36 09 | 49 44 34 3a 20 50 69 6e |2:Pin 6.|ID4: Pin|
|00005710| 20 37 09 53 43 53 49 20 | 49 44 09 0d 48 69 67 68 | 7.SCSI |ID..High|
|00005720| 09 48 69 67 68 09 48 69 | 67 68 09 30 09 0d 4c 6f |.High.Hi|gh.0..Lo|
|00005730| 77 09 48 69 67 68 09 48 | 69 67 68 09 31 09 0d 48 |w.High.H|igh.1..H|
|00005740| 69 67 68 09 4c 6f 77 09 | 48 69 67 68 09 32 09 0d |igh.Low.|High.2..|
|00005750| 4c 6f 77 09 4c 6f 77 09 | 48 69 67 68 09 33 09 0d |Low.Low.|High.3..|
|00005760| 48 69 67 68 09 48 69 67 | 68 09 4c 6f 77 09 34 09 |High.Hig|h.Low.4.|
|00005770| 0d 4c 6f 77 09 48 69 67 | 68 09 4c 6f 77 09 35 09 |.Low.Hig|h.Low.5.|
|00005780| 0d 48 69 67 68 09 4c 6f | 77 09 4c 6f 77 09 36 09 |.High.Lo|w.Low.6.|
|00005790| 0d 4c 6f 77 09 4c 6f 77 | 09 4c 6f 77 09 37 09 0d |.Low.Low|.Low.7..|
|000057a0| 0d 54 65 72 6d 69 6e 61 | 74 6f 72 0d 0d 54 68 65 |.Termina|tor..The|
|000057b0| 20 68 61 72 64 20 64 69 | 73 6b 20 68 61 73 20 31 | hard di|sk has 1|
|000057c0| 30 30 30 2d 6f 68 6d 20 | 74 65 72 6d 69 6e 61 74 |000-ohm |terminat|
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|000057e0| 72 20 61 6c 6c 20 49 2f | 4f 20 73 69 67 6e 61 6c |r all I/|O signal|
|000057f0| 20 6c 69 6e 65 73 2e 20 | 54 68 65 20 6c 69 6e 65 | lines. |The line|
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|00005840| 6f 77 65 72 20 52 65 71 | 75 69 72 65 6d 65 6e 74 |ower Req|uirement|
|00005850| 73 20 0d 0d 50 6f 77 65 | 72 20 64 72 61 77 6e 20 |s ..Powe|r drawn |
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|000059c0| 52 61 6e 64 6f 6d 20 6f | 70 65 72 61 74 69 6f 6e |Random o|peration|
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|00005c40| 63 61 74 68 6f 64 65 20 | 66 6c 75 6f 72 65 73 63 |cathode |fluoresc|
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|000060a0| 63 6b 65 72 20 74 68 61 | 6e 20 74 68 65 20 6f 72 |cker tha|n the or|
|000060b0| 69 67 69 6e 61 6c 20 50 | 6f 77 65 72 42 6f 6f 6b |iginal P|owerBook|
|000060c0| 20 44 75 6f 20 64 69 73 | 70 6c 61 79 2c 20 74 68 | Duo dis|play, th|
|000060d0| 65 20 6f 76 65 72 61 6c | 6c 20 68 6f 75 73 69 6e |e overal|l housin|
|000060e0| 67 20 69 73 20 61 6c 73 | 6f 20 74 68 69 63 6b 65 |g is als|o thicke|
|000060f0| 72 20 74 68 61 6e 20 74 | 68 65 20 6f 72 69 67 69 |r than t|he origi|
|00006100| 6e 61 6c 20 50 6f 77 65 | 72 42 6f 6f 6b 20 44 75 |nal Powe|rBook Du|
|00006110| 6f 20 68 6f 75 73 69 6e | 67 2e 20 57 68 65 6e 20 |o housin|g. When |
|00006120| 74 68 65 20 63 61 73 65 | 20 69 73 20 63 6c 6f 73 |the case| is clos|
|00006130| 65 64 2c 20 69 74 20 6d | 65 61 73 75 72 65 73 20 |ed, it m|easures |
|00006140| 32 30 33 2e 32 20 6d 69 | 6c 6c 69 6d 65 74 65 72 |203.2 mi|llimeter|
|00006150| 73 20 62 79 20 32 37 34 | 2e 33 32 20 6d 69 6c 6c |s by 274|.32 mill|
|00006160| 69 6d 65 74 65 72 73 20 | 28 38 20 69 6e 63 68 65 |imeters |(8 inche|
|00006170| 73 20 62 79 20 31 30 2e | 38 20 69 6e 63 68 65 73 |s by 10.|8 inches|
|00006180| 29 2c 20 61 6e 64 20 69 | 73 20 33 36 2e 38 20 6d |), and i|s 36.8 m|
|00006190| 69 6c 6c 69 6d 65 74 65 | 72 73 20 28 31 2e 34 34 |illimete|rs (1.44|
|000061a0| 39 20 69 6e 63 68 65 73 | 29 20 64 65 65 70 2e 20 |9 inches|) deep. |
|000061b0| 46 69 67 75 72 65 20 32 | 2d 37 20 73 68 6f 77 73 |Figure 2|-7 shows|
|000061c0| 20 61 6e 20 6f 70 65 6e | 20 76 69 65 77 20 6f 66 | an open| view of|
|000061d0| 20 74 68 65 20 63 6c 61 | 6d 73 68 65 6c 6c 2e 20 | the cla|mshell. |
|000061e0| 0d 49 4d 50 4f 52 54 41 | 4e 54 0d 53 69 6e 63 65 |.IMPORTA|NT.Since|
|000061f0| 20 74 68 65 20 63 6c 61 | 6d 73 68 65 6c 6c 20 63 | the cla|mshell c|
|00006200| 61 73 65 20 69 73 20 73 | 6c 69 67 68 74 6c 79 20 |ase is s|lightly |
|00006210| 64 65 65 70 65 72 20 74 | 68 61 6e 20 74 68 65 20 |deeper t|han the |
|00006220| 63 61 73 65 20 6f 66 20 | 74 68 65 20 6f 72 69 67 |case of |the orig|
|00006230| 69 6e 61 6c 20 50 6f 77 | 65 72 42 6f 6f 6b 20 44 |inal Pow|erBook D|
|00006240| 75 6f 2c 20 69 66 20 79 | 6f 75 20 70 6c 61 6e 20 |uo, if y|ou plan |
|00006250| 74 6f 20 75 73 65 20 74 | 68 65 20 50 6f 77 65 72 |to use t|he Power|
|00006260| 42 6f 6f 6b 20 44 75 6f | 20 32 37 30 63 20 63 6f |Book Duo| 270c co|
|00006270| 6d 70 75 74 65 72 20 77 | 69 74 68 20 74 68 65 20 |mputer w|ith the |
|00006280| 44 75 6f 20 44 6f 63 6b | 2c 20 79 6f 75 20 63 61 |Duo Dock|, you ca|
|00006290| 6e 6e 6f 74 20 75 73 65 | 20 61 20 73 74 61 6e 64 |nnot use| a stand|
|000062a0| 61 72 64 20 44 75 6f 20 | 44 6f 63 6b 2e 20 54 68 |ard Duo |Dock. Th|
|000062b0| 65 20 73 6c 6f 74 20 69 | 73 20 6e 6f 74 20 64 65 |e slot i|s not de|
|000062c0| 65 70 20 65 6e 6f 75 67 | 68 20 74 6f 20 61 63 63 |ep enoug|h to acc|
|000062d0| 6f 6d 6d 6f 64 61 74 65 | 20 74 68 65 20 50 6f 77 |ommodate| the Pow|
|000062e0| 65 72 42 6f 6f 6b 20 44 | 75 6f 20 32 37 30 63 20 |erBook D|uo 270c |
|000062f0| 63 6c 61 6d 73 68 65 6c | 6c 20 63 61 73 65 2e 20 |clamshel|l case. |
|00006300| 54 68 65 72 65 20 61 72 | 65 20 74 77 6f 20 73 6f |There ar|e two so|
|00006310| 6c 75 74 69 6f 6e 73 2e | 20 59 6f 75 20 6d 61 79 |lutions.| You may|
|00006320| 20 75 70 67 72 61 64 65 | 20 74 68 65 20 74 6f 70 | upgrade| the top|
|00006330| 20 73 68 65 6c 6c 20 6f | 66 20 61 6e 20 65 78 69 | shell o|f an exi|
|00006340| 73 74 69 6e 67 20 44 75 | 6f 20 44 6f 63 6b 20 74 |sting Du|o Dock t|
|00006350| 6f 20 65 6e 6c 61 72 67 | 65 20 74 68 65 20 73 6c |o enlarg|e the sl|
|00006360| 6f 74 2e 20 46 75 74 75 | 72 65 20 44 75 6f 20 44 |ot. Futu|re Duo D|
|00006370| 6f 63 6b 73 20 77 69 6c | 6c 20 61 63 63 6f 6d 6d |ocks wil|l accomm|
|00006380| 6f 64 61 74 65 20 74 68 | 65 20 64 65 65 70 65 72 |odate th|e deeper|
|00006390| 20 63 61 73 65 2c 20 61 | 6e 64 20 77 69 6c 6c 20 | case, a|nd will |
|000063a0| 6e 6f 74 20 72 65 71 75 | 69 72 65 20 6d 6f 64 69 |not requ|ire modi|
|000063b0| 66 69 63 61 74 69 6f 6e | 2e 20 13 73 0d 46 69 67 |fication|. .s.Fig|
|000063c0| 75 72 65 20 32 2d 35 09 | 54 68 65 20 50 6f 77 65 |ure 2-5.|The Powe|
|000063d0| 72 42 6f 6f 6b 20 44 75 | 6f 20 32 37 30 63 20 63 |rBook Du|o 270c c|
|000063e0| 6f 6d 70 75 74 65 72 20 | 68 6f 75 73 69 6e 67 20 |omputer |housing |
|000063f0| 69 6e 20 6f 70 65 6e 20 | 70 6f 73 69 74 69 6f 6e |in open |position|
+--------+-------------------------+-------------------------+--------+--------+