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Text File  |  1996-10-24  |  5.1 KB  |  120 lines
  1. **************************************************************************
  2. *                                                                        *
  3. *           SOME INFORMATIONS ABOUT A1200 rev 1->1D PCB                  *
  4. *                       CHANNEL Z 10/10/92                               *
  5. *                                                                        *
  6. * Filip Kopec (comes@comes.com.pl)                 Greetings from POLAND *
  7. **************************************************************************
  8. --------------------------------------------------------------------------
  9. SHORT... REVISION HISTORY (incomplete:))
  10.  
  11. Rev.
  12.  0      engineering prototype           03-13-92
  13.  1      advance engineering release     06-29-92
  14.  A      pilot production release        09-09-92
  15.  B      revised pereco 920695(???)      11-13-92
  16.  
  17. --------------------------------------------------------------------------
  18. MAIN COMPONENTS!
  19.  
  20. U0      -   MC68881             MATHCOPROCESSOR (OPTION) 68-PIN PLCC
  21. U1      -   MC68ec020 16MHz     PROCESSOR 100-Pin PQFP
  22. U2      -   8374                ALICE (AA AGNUS) 84-Pin PLCC
  23. U3      -   8364R7              PAULA 52-PIN PLCC
  24. U4      -   4203                LISA (AA DENISE) 84-PIN PLCC
  25. U5      -   4145F023A           GAYLE Gate Array (ASIC) 84-PIN PLCC
  26. U6      -   62408               ROM KICKSTART 16bit-512Kx16-150NS
  27. U6A&B   -   62408               ROM KICKSTART 32bit (OPTION)2x40-PIN DIP
  28. U7-8    -   8520R4              VIA.1MHz (CIA) 44-PIN PLCC
  29. U9      -   RF5C01A             RICOH RTC (OPTION)
  30. U10-11  -   28F10               FLASH MEMORY 128Kx8
  31. U12     -   CXA1145M            SONY Video Encoder
  32. U13     -   68HC05C(12)         Keyboard Mpu 44-PIN PLCC
  33. U15     -   TLO84ACD or LF347   BICMOS/BIMOS OP-AMP
  34. U16-17  -   DRAM256Kx16         1st MB CHIP Memory-80NS
  35.                                 (Very OLD! models... have only 1MB CHIP)
  36.  
  37. U18-19  -   DRAM256Kx16         2nd MB CHIP Memory-80NS
  38.                                 (OLD! models... A1201card with 2nd MB CHIP
  39.                                 and RTC - connector P9A-B)
  40.  
  41. U20     -   391???(e.425)       BUDGIE (ASIC) 128-PIN PQFP
  42. U23     -   74F139
  43. U26     -   74LS86
  44. U28     -   MC1488D             EIA Line Driver
  45. U29     -   MC1489D             EIA Line Receiver
  46. U30     -   BT101               VIDEO DAC Triple 8Bit-30MHz 44-PIN PLCC
  47. U32     -   74HCT244
  48. U34     -   74LS166
  49. U43     -   74LS245
  50. U45-47  -   74LS245
  51. U49     -   RH5VA43A            Voltage Detector
  52. X1      -   Oscillator          PAL     28.37512MHz
  53.                                 NTSC    28.63636MHz
  54.  
  55. X2      -   MDG-??????          Modulator PAL   MDG-UD3626
  56.                                           NTSC  MDG-VA3424
  57.  
  58. XU9     -   16R4-10/16V8-10     Programmed PAL/GAL ROMFEST
  59.             16V8-15/16R4-15
  60.  
  61. Y451    -   Crystal             4.433619MHz
  62. Y621    -   Resonator           Ceramic 3.00MHz
  63.  
  64. --------------------------------------------------------------------------
  65. IN/OUT CONNECTORS!
  66.  
  67. CN1     DB9P        Mouse/Joystick 1
  68. CN2     DB9P        Joystick 2
  69. CN3     RCA-J       Right Audio Output
  70. CN4     RCA-J       Left Audio Output
  71. CN5     DB23S       External Floppy
  72. CN6     DB25P       RS232
  73. CN7     DB25S       Parallel
  74. CN8     SQ DIN      Power Supply Connector
  75. CN9     DB23S       Video RGB Output
  76. CN10    RCA-J       Video Composite
  77. CN11    DIL-34      Internal Floppy Signal
  78. CN12    SIL-4       Internal Floppy Power
  79. CN13    MEM-30      Keyboard Membrane
  80. CN14    SIL-4       Keyboard Status LED's
  81. CN15    PCMCIA II   PCMCIA Cards
  82. P9A-B   EDGE-80     Memory Bus Expansion(very OLD! model)
  83.                     and Real-Time Clock/Calendar
  84.  
  85. --------------------------------------------------------------------------
  86. A1200 MEMORY MAP!
  87.  
  88. 000000 to 1FFFFF    2MB     Chip RAM or system ROM overlay
  89. 200000 to 5FFFFF    4MB     ZORRO II expansion space
  90. 600000 to 9FFFFF    4MB     Credit Card memory if CC present
  91. A00000 to A1FFFF    128KB   CC attributes
  92. A20000 to A3FFFF    128KB   CC I/O
  93. A40000 to A5FFFF    128KB   CC bits
  94. A60000 to A7FFFF    128KB   PC I/O
  95. A80000 to B7FFFF    1MB     System ROM selected
  96. B80000 to BEFFFF    448KB   Not used
  97. BF0000 to BFFFFF     64KB   8520 VIA's
  98. C00000 to CFFFFF    1MB     C00000 Memory
  99. D00000 to D7FFFF    512KB   PC Memory
  100. D80000 to D8FFFF     64KB   Spare Chip select
  101. D90000 to D9FFFF     64KB   Arcnet Chip select
  102. DA0000 to DA3FFF     16KB   IDE drive
  103. DA4000 to DA4FFF     16KB   IDE reserved
  104. DA8000 to DAFFFF     32KB   CC&IDE config registers
  105. DB0000 to DBFFFF     64KB   Not used (reserved for external IDE)
  106. DC0000 to DCFFFF     64KB   Real Time Clock
  107. DD0000 to DDFFFF     64KB   Reserved for DMA controller
  108. DE0000 to DEFFFF     64KB   Not used
  109. DF0000 to DFFFFF     64KB   Chip registers
  110. E00000 to E7FFFF    512KB   System ROM (first half if 1MB ROM)
  111. E80000 to EFFFFF    512KB   Configuration and I/O card space
  112. F00000 to F7FFFF    512KB   Flash ROM space
  113. F80000 to FFFFFF    512KB   System ROM (second half if 1MB ROM)
  114.  
  115. SEE PICTURES memory.iff AND block.iff
  116. --------------------------------------------------------------------------
  117. --------------------------------------------------------------------------
  118. Future... maybe complete sheme!
  119. ----------------------------------------------------BYE! Filip------------
  120.