Vax 613 0S Instruction Manual Page 135

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8.2 Internal Registers
The Dual SCSI internal registers control DMA transfers and reflect their status.
The registers are located:
Table 32 TURBOchannel Dual SCSI ASIC Register Map
Start
Address End Address Size Register R/W
300 Models
1.8004.0000 1.8004.0003 4 B Control interrupt register (Section 8.2.1) R/W
1.8004.0004 1.8004.0007 4 B Interrupt mask enable Register (Section 8.2.2) R/W
1.8004.0008 1.8004.0FFF Reserved
1.8004.1000 1.8004.1003 4 B SCSI[0] DMA address (Section 8.2.3) R/W
1.8004.1004 1.8004.1007 4 B SCSI[0] DMA interrupt control R/W
1.8004.1008 1.8004.100B 4 B SCSI[0] DMA unaligned data[0] (Section 8.2.5) R
1.8004.100C 1.8004.100F 4 B SCSI[0] DMA unaligned data[1] (Section 8.2.5) R
1.8004.1010 1.8004.10FF Reserved
1.8004.1100 1.8004.1103 4 B SCSI[1] DMA address (Section 8.2.3) R/W
1.8004.1104 1.8004.1107 4 B SCSI[1] DMA interrupt control R/W
1.8004.1108 1.8004.110B 4 B SCSI[1] DMA unaligned data[0] (Section 8.2.5) R
1.8004.110C 1.8004.110F 4 B SCSI[1] DMA unaligned data[1] (Section 8.2.6) R
400/500/600/700/800/900 Models
1.C004.0000 1.C004.0003 4 B Control interrupt register (Section 8.2.1) R/W
1.C004.0004 1.C004.0007 4 B Interrupt mask enable Register (Section 8.2.2) R/W
1.C004.0008 1.C004.0FFF Reserved
1.C004.1000 1.C004.1003 4 B SCSI[0] DMA address (Section 8.2.3) R/W
1.C004.1004 1.C004.1007 4 B SCSI[0] DMA interrupt control (Section 8.2.4) R/W
1.C004.1008 1.C004.100B 4 B SCSI[0] DMA unaligned data[0] (Section 8.2.5) R
1.C004.100C 1.C004.100F 4 B SCSI[0] DMA unaligned data[1] (Section 8.2.6) R
1.C004.1010 1.C004.10FF Reserved
1.C004.1100 1.C004.1103 4 B SCSI[1] DMA address (Section 8.2.3) R/W
1.C004.1104 1.C004.1107 4 B SCSI[1] DMA interrupt control (Section 8.2.4) R/W
1.C004.1108 1.C004.110B 4 B SCSI[1] DMA unaligned data[0] (Section 8.2.5) R
1.C004.110C 1.C004.110F 4 B SCSI[1] DMA unaligned data[1] (Section 8.2.6) R
TURBOchannel Dual SCSI ASIC 8–3
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