Vax 613 0S Instruction Manual Page 5

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7.3.3 Communication Port 1 Receive DMA
Pointer—1.A004.0040/1.E004.0040............................ 7–7
7.3.4 Printer Port Transmit DMA Pointer—NA/ 1.E004.0050 ............ 7–8
7.3.5 Printer Port Receive DMA Pointer—NA/1.E004.0060 ............. 7–8
7.3.6 ISDN Transmit DMA Pointer—1.A004.0080/1.E004.0080 . . . ....... 7–8
7.3.7 ISDN Transmit DMA Buffer Pointer—1.A004.0090/1.E004.0090 ..... 7–8
7.3.8 ISDN Receive DMA Pointer—1.A004.00A0/1.E004.00A0 ........... 7–9
7.3.9 ISDN Receive DMA Buffer Pointer—1.A004.00B0/1.E004.00B0 ...... 7–9
7.3.10 Data buffers
3-0—1.A004.00C0-1.A004.00F0/1.E004.00C0-1.E004.00F0 . . . ....... 7–9
7.3.11 System Support Register—1.A004.0100/1.E004.0100 .............. 7–10
7.3.12 System Interrupt Register (SIR)—1.A004.0110/1.E004.0110 . ....... 7–12
7.3.13 System Interrupt Mask Register—1.A004.0120/1.E004.0120 . ....... 7–15
7.3.14 System Address Register—1.A004.0130/1.E004.0130 .............. 7–15
7.3.15 ISDN Data Transmit Register—1.A004.0140/1.E004.0140 . . . ....... 7–16
7.3.16 ISDN Data Receive Register—1.A004.0150/1.E004.0150 ........... 7–16
7.3.17 LANCE I/O Slot Register—1.A004.0160/1.E004.0160 .............. 7–16
7.3.18 SCC-0 DMA Slot Register—1.A004.0180/1.E004.0180 ............. 7–17
7.3.19 SCC-1 DMA Slot Register—1.A004.0190/1.E004.0190 ............. 7–17
7.4 Ethernet Station Address ROM Addresses. . ....................... 7–18
7.5 LANCE Register Addresses .................................... 7–21
7.6 SCC Register Addresses ....................................... 7–21
7.7 RTC Register Addresses....................................... 7–23
7.8 ISDN Register Addresses ...................................... 7–24
7.8.1 ISDN Register Addresses (300 Models) . ....................... 7–24
7.8.2 ISDN Register Addresses (400/500/600/700/800/900 Models) . ....... 7–26
8 TURBOchannel Dual SCSI ASIC
8.1 TURBOchannel Dual SCSI Address Map . . . ....................... 8–2
8.2 Internal Registers . . . ........................................ 8–3
8.2.1 Control Interrupt Register (CIR)—1.8004.0000/1.C004.0000 . ....... 8–4
8.2.2 Interrupt Mask Enable Register
(IMER)—1.8004.0004/1.C004.0004 ............................ 8–7
8.2.3 SCSI[x] DMA Address Register (SDAx)—1.8004.1x00/1.C004.1x00 . . . 8–8
8.2.4 SCSI[x] DMA Interrupt Control Register
(DICx0)—1.8004.1x04/1.C004.1x04............................ 8–9
8.2.5 SCSI[x] DMA Unaligned Data[0]
(DUDx0)—1.8004.1x08/1.C004.1x08 ........................... 8–10
8.2.6 SCSI[x] DMA Unaligned Data[1]
(DUDx1)—1.8004.1x0C/1.C004.1x0C . . . ....................... 8–11
8.3 NCR 53C94 Registers (300/400/500 Models). ....................... 8–12
8.4 NCR 53CF94-2 Registers (600/700/800/900 Models) . . . ............... 8–13
8.5 DMA buffers ............................................... 8–14
9 I/O Programming
9.1 I/O Read and Write Restrictions ................................ 9–2
9.2 DMA ..................................................... 9–3
9.2.1 Physical DMA . . . ........................................ 9–3
9.2.2 Virtual DMA (400/500/600/700/800/900 Models) . . . ............... 9–3
9.3 Interrupt Handling During I/O Operations . ....................... 9–4
9.4 TURBOchannel Usage (System-Specific) . . . ....................... 9–5
9.4.1 DMA Size ............................................... 9–5
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