Installation guide

Table 1-10 System Interrupt Register (SIR)
0x1C040110
Bits Access Description
31 R/W0C Comm port 1 transmit page end
interrupt
30 R/W0C Comm port 1 transmit DMA
memory read error
29 R/W0C Comm port 1 receive half page
interrupt
28 R/W0C Comm port 1 receive DMA page
overrun
27 R/W0C Comm port 2 transmit page end
interrupt
26 R/W0C Comm port 2 transmit DMA
memory read error
25 R/W0C Comm port 2 receive half page
interrupt
24 R/W0C Comm port 2 receive DMA overrun
23 R/W0C Reserved
22 R/W0C Reserved
21 R/W0C Reserved
20 R/W0C Reserved
19 R/W0C SCSI DMA interrupt (DMA buffer
pointer loaded)
18 R/W0C SCSI DMA overrun error
17 R/W0C SCSI DMA memory read error
16 R/W0C LANCE DMA memory read error
15 R Reserved
14 R NVR mode jumper
13 R Reserved
12 R CPU I/O-write timeout interrupt
1–20 TROUBLESHOOTING INFORMATION