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Magazyn Enter 1999 January
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CX486LC.CFG
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1994-05-04
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2KB
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65 lines
;********** Cyrix/Texas 486SLC/DLC in CX486.CFG********************
INDEXPORT=22h
DATENPORT=23h
FLUSH=INVD
INDEX=C0h; Configuration Control Register 0
BIT=7 ;0/1 (Suspend) /SUSP input and /SUPSA output
BIT=6 ; (CO) Cache-Organisation
0= 2-Way
1= direct mapped
BIT=5 ;0/1 (BARB) Flush Cache every HOLD
BIT=4 ;0/1 (FLUSH) /Flush input pin (DLC:E13, SLC:30)
BIT=3 ;0/1 (KEN) /KEN input pin (DLC:B12, SLC:29)
BIT=2 ;0/1 (A20M) /A20M input pin (DLC:F13, SLC:31)
BIT=1 ;0/1 (MC1) 640K-1M non-cacheable
; (Bug in A4/A5 Stepping!)
BIT=0 ;0/1 (NC0) First 64KB always not cacheable
; (Real/Virtuell)
INDEX=C1h; Configuration Control Register 1
Bit=0 ; 0/1 (RPL) output pins /RPLSET and /RPLVAL
INDEX=C4h; Non Cacheable Region Register (Default=00h);
BIT=7654321 ; A31 - A24 of starting address Region 1
INDEX=C5h; Non Cacheable Region Register (Default=0Ah);
BIT=76543210 ; A23 - A16 of starting address Region 1
INDEX=C6h; Non Cacheable Region Register (Default=06h);
BIT 7654 ; A15 - A12 of starting address Region 1
BIT=3210 ; Size of non-cacheable Region 1
INDEX=C7h; Non Cacheable Region Register (Default=00h);
BIT=7654321 ; A31 - A24 of starting address Region 2
INDEX=C8h; Non Cacheable Region Register (Default=0Ah);
BIT=76543210 ; A23 - A16 of starting address Region 2
INDEX=C9h; Non Cacheable Region Register (Default=06h);
BIT 7654 ; A15 - A12 of starting address Region 2
BIT=3210 ; Size of non-cacheable Region 2
INDEX=CAh; Non Cacheable Region Register (Default=00h);
BIT=7654321 ; A31 - A24 of starting address Region 3
INDEX=CBh; Non Cacheable Region Register (Default=0Ah);
BIT=76543210 ; A23 - A16 of starting address Region 3
INDEX=CCh; Non Cacheable Region Register (Default=06h);
BIT 7654 ; A15 - A12 of starting address Region 3
BIT=3210 ; Size of non-cacheable Region 3
INDEX=CDh; Non Cacheable Region Register (Default=00h);
BIT=7654321 ; A31 - A24 of starting address Region 4
INDEX=CEh; Non Cacheable Region Register (Default=0Ah);
BIT=76543210 ; A23 - A16 of starting address Region 4
INDEX=CFh; Non Cacheable Region Register (Default=06h);
BIT 7654 ; A15 - A12 of starting address Region 4
BIT=3210 ; Size of non-cacheable Region 4