AT&T 3B2/300 Technical Reference Manual page 509

FUNCTIONAL D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - -
Dll'FERENTIAL 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 59.9K
Ox OF060
- LCS DRAM (EDT, SANITY, STATE FLAGS) READ/WRITE 16
4K
Ox 10000 -
LCS NOT USED
- -
458K
Ox 80000 - MCS DPDRAM READ/WRITE 16 128K
Ox AOOOO
-
MCS
NOT USED - - 256K
Ox COOOO Ox 0400 PCSO
87030 SCSI BUS ID READ/WRITE
8
1
Ox COOOl Ox 0401 PCSO
NOT USED
-
8
1
Ox C0002 Ox 0402 PCSO
87030 CONTROL REGISTER -
-
1
Ox C0004 Ox 0404 PCSO
87030 COMMAND REGISTER - - 1
Ox C0006 Ox 0406
PCSO 87030 TRANSFER MODE REGISTER -
-
1
Ox C0008 Ox 0408
PCSO 87030 INTERRUPT REGISTER 8 - 1
Ox COOOA Ox 040A PCSO
87030 PHASE/DIAGNOSTIC REG. - - 1
Ox COOOC Ox 040C
PCSO 87030 STATUS REGISTER - - 1
Ox CODDE
Ox 040E PCSO 87030 ERROR ST A TUS REG. - - 1
Ox COOlO Ox 0410 PCSO 87030 PHASE/MODIFIED BYTE CONTROL - 24 3
Ox C0014
Ox 0414 PCSO 87030 DATA/TEMPORARY/TRANS. HIGH REG. - 40 5
Ox COOlA
Ox 041A PCSO 87030 TRANS. MID REG. - 8 1
Ox COOlC
Ox 041C PCSO 87030 TRANS. LOW REG. - 8 1
Ox CODIE
Ox 041E PCSO 87030 EXBUFFER REG.
-
8 1
Ox C0080
Ox 0480 PCSl ID/VECTOR REGISTER WRITE 16 2
Ox C0082
Ox 0482 PCSl 80186 PAGE REGISTER WRITE 16 1
Ox C0084
Ox 0484 PCSl PCSR BITS 15-0 READ 16 2
Ox C0088 Ox 0488 PCSl PCSR BIT O (INTO)
-
1
Ox C0089 Ox 0489 PCSl
PCSR BIT 1 (INTI)
-
1
Ox COOSA
Ox 048A PCSl
PCSR BIT 2 (INT2)
-
1
Ox C008B
Ox 048B PCSl
PCSR BIT 3 (INT3) - 1
Ox COOBC
Ox 048C PCSl PCSR BIT 4 (INT3)
-
1
Ox COOBD Ox 048D PCSl PCSR BIT 5 (NM!)
-
1
Ox C008E
Ox 048E PCSl PCSR BIT 6 (INT2) -
1
Ox C008F
Ox 048F PCSl PCSR BIT 7 (PINTlO)
-
1
Ox COOA2
Ox 04A2 PCSl SCSI TO 3B2 PAGE REGISTER
WRITE 16 1
Ox COOC2 Ox 04C2 PCSl
3B2 TO SCSI PAGE REGISTER WRITE 16 1
Ox COlOO
Ox 0500 PCS2
ACCESSING SCSI ID READ 8 1
Ox COlOO Ox 0500 PCS2
RESET PARITY - - 1
Ox C0180 Ox 0580 PCS3
RESET SCSI FIFO - 8 1
Ox C0200 Ox 0600
PCS4 3B2 FIFO WORD ACCESS READ/WRITE 16 2
Ox C0280 Ox 0680 PCS5
8237 CHANNEL O ADDRESS REGISTER READ/WRITE 8 1
Ox C0282 Ox 0682 PCS5
8237 CHANNEL O CONTROL REGISTER
READ/WRITE
8
1
Ox C0284
Ox 0684 PCS5 8237 CHANNEL 1 ADDRESS REGISTER READ/WRITE 8
1
Ox C0286 Ox 0686 PCSS
8237 CHANNEL 1 CONTROL REGISTER READ/WRITE 8 1
Ox C0290 Ox 0690
PCSS 8237 COMMAND AND STATUS REGISTER READ/WRITE 8 1
Ox C0292 Ox 0692 PCSS
8237 ILLEGAL REQUEST REGISTER
READ/WRITE 8 1
Ox C0294
Ox 0694 PCS5 8237 ILLEGAL MASK REGISTER
READ/WRITE 3 1
Ox C0296 Ox 0696 PCS5
8237 ILLEGAL MODE REGISTER READ/WRITE 8 1
Ox C0298 Ox 0698 PCS5
8237 ILLEGAL BYTE FLIPFLOP READ/WRITE 1
-
Ox C029A
Ox 069A PCS5 8237 TEMPORARY REG MASTER CLEAR
READ/WRITE 8 1
Ox C029C Ox 069C
PCSS
8237 ILLEGAL CLEAR MASK REGISTER READ/WRITE 1-1
Ox C029E
Ox 069E PCSS
8237 ILLEGAL MASK REGISTER BITS READ/WRITE 4
Ox C029F
Ox 069F PCS5 8237 (RESERVED)
-
768 96
Figure 3-78: CM521A Differential SCSI Host Adapter Card Address Map (Sheet 1 of 2)
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TECHNICAL REFERENCE MANUAL