AT&T 3B2/300 Technical Reference Manual page 495

FUNCTIONAL D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - -
SCSI HOST ADAPTER CARD OUTPUT ADDRESS MAP
MEMORY 1/0 CHIP WIDTH SIZE
ADDRESS ADDRESS SELECT
DESCRIPTION
ACCESS
(BITS) (BYTES)
Ox 00000 - LCS DRAM (VECTOR TABLE) READ/WRITE 16 128
Ox 00080
- LCS DRAM (DEMON) READ/WRITE 16
123.9K
Ox 1F060
-
LCS
DRAM (EDT, SANITY, ST A TE FLAGS)
READ/WRITE 16 4K
Ox 20000 - LCS NOT USED - - 128K
Ox 40000 -
-
NOT USED - - 256K
Ox 80000
-
MCS DPDRAM READ/WRITE 16 128K
Ox AOOOO
-
MCS
NOT USED - -
256K
Ox COOOO Ox 0400 PSO (NOT USED) - - 1
Ox COOOl
Ox 0401 PSO 5386 DAT A REGISTER READ/WRITE
8
1
Ox C0003 Ox 0403 PSO
5386 COMMAND REGISTER
READ/WRITE 8 1
Ox C0005 Ox 0405 PSO 5386 CONTROL REGISTER READ/WRITE 8 1
Ox C0007 Ox 0407 PSO 5386 DESTINATION ID READ/WRITE 8 1
Ox C0009 Ox 0409 PSO
5386 AUXILIARY STATUS REGISTER READ
8 1
Ox COOOB Ox 040B PSO 5386 ID REGISTER READ 8 1
Ox COOOD
Ox 040D PSO 5386 INTERRUPT REGISTER READ 8 1
Ox COOOF Ox 040F PSO
5386 SOURCE ID READ
8 1
Ox C0013 Ox 0413 PSO 5386 DIAGNOSTIC REGISTER READ 8 1
Ox C0019 Ox 0419 PSO 5386 TRANSFER CONTROL MSB READ/WRITE 8 1
Ox COOlD Ox 0410 PSO 5386 TRANSFER CONTROL LSB READ/WRITE 8 1
Ox COOlF
Ox 041F PSO 5386 (RESERVED) - 8 1
Ox COOlF Ox 041F PSO
5386 FIFO ACCESS READ/WRITE
8 1
Ox C0080
Ox 0480 PSI ID/VECTOR REGISTER WRITE 16 2
Ox C0082 Ox 0482
PSI 80186 PAGE REGISTER WRITE 7 1
Ox C0084 Ox 0484 PSI
PCSR BITS 15-0 READ
8 2
Ox C0086 Ox 0486 PSI SCSI BUS RESET WRITE 1
Ox C0088
Ox 0488 PSI PCSR BIT O (INTO) - 1
Ox C0089 Ox 0489 PSI
PCSR BIT 1 (INTl) - 1
Ox COOSA Ox 048A PSI PCSR BIT 2 (INT2) - 1
Ox C008B Ox 048B PSI PCSR BIT 3 (INT3)
-
1
Ox C008C Ox 048C PSI
PCSR BIT 4 (INT3) -
1
Ox C0080 Ox 0480 PSI
PCSR BIT 5
(NM!)
- 1
Ox C008E
Ox 048E PSI PCSR BIT 6 (INT2) - 1
Ox C008F Ox 048F
PSI PCSR BIT 7 (PINT) - 1
Ox COOA2 Ox 04A2 PSI
SCSI TO 3B2 PAGE REGISTER WRITE 7 1
Ox COOC2 Ox 04C2 PSI 3B2 TO SCSI PAGE REGISTER WRITE 7 1
Ox COlOO Ox 0500 PS2 RESET 3B2 FIFO - - 1
Ox C0180
Ox 0580 PS3 RESET SCSI FIFO - - 1
Ox C0200 Ox 0600
PS4 3B2 FIFO WORD ACCESS READ/WRITE 16 2
Ox C0280 Ox 0680 PSS
8237 CHANNEL O ADDRESS REGISTER READ/WRITE
8
1
Ox C0282 Ox 0682 PS5 8237 CHANNEL O CONTROL REGISTER READ/WRITE 8 1
Ox C0284 Ox 0684 PSS
8237 CHANNEL
1
ADDRESS REGISTER READ/WRITE 8 1
Ox C0286 Ox 0682 PSS 8237 CHANNEL 1 CONTROL REGISTER READ/WRITE 8 1
Ox C0290 Ox 0690 PSS 8237 COMMAND AND STATUS REGISTER READ/WRITE 8 1
Ox C0292 Ox 0692 PSS 8237 ILLEGAL REQUEST REGISTER READ/WRITE 8 1
Ox C0294 Ox 0694 PS5 8237 ILLEGAL MASK REGISTER READ/WRITE 3 1
Ox CO2%
Ox 0696 PSS 8237 ILLEGAL MODE REGISTER READ/WRITE 8 1
Ox C0298
Ox 0698 PSS 8237 ILLEGAL BYTE FLIPFLOP READ/WRITE 1 1
Ox C029A
Ox 069A PSS 8237 TEMPORARY REG MASTER CLEAR READ/WRITE 8 1
Ox C029C Ox 069C
PSS 8237 ILLEGAL CLEAR MASK REGISTER READ/WRITE 1 1
Ox C029E Ox 069E
PSS 8237 ILLEGAL MASK REGISTER BITS READ/WRITE 4
Ox C029F Ox 069F PSS
8237 (RESERVED) - -
96
Figure 3-74: CM195W SCSI Host Adapter Card Address Map (Sheet 1 of 2)
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