Vax 613 0S Instruction Manual Page 107

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7.1 IOCTL Address Map
Table 16 lists the I/O space allocation.
Table 16 IOCTL Address Map
Start
Address End Address Size Register R/W
400/500/600/700/800/900 Models
1.E000.0000 1.E003.FFFF 256 KB System FEPROM (Section 7.2) R/W
1.E004.0000 1.E007.FFFF 256 KB IOCTL registers (Section 7.3) R/W
1.E008.0000 1.E00B.FFFF 256 KB Ethernet address ROM R
1.E00C.0000 1.E00F.FFFF 256 KB LANCE Ethernet interface R/W
1.E010.0000 1.E013.FFFF 256 KB SCC0 (A and B channels) R/W
1.E014.0000 1.E017.FFFF Reserved
1.E018.0000 1.E01B.FFFF 256 KB SCC1 (A and B channels) R/W
1.E01C.0000 1.E01F.FFFF Reserved
1.E020.0000 1.E023.FFFF 256 KB Dallas RTC chip R/W
1.E024.0000 1.E027.FFFF 256 KB AMD 79C30A ISDN/audio chip R/W
1.E028.0000 1.E1FF.FFFF Reserved
300 Models
1.A000.0000 1.A003.FFFF 256 KB System ROM space R/W
1.A004.0000 1.A007.FFFF 256 KB IOCTL registers R/W
1.A008.0000 1.A00B.FFFF 256 KB Ethernet address ROM R
1.A00C.0000 1.A00F.FFFF 256 KB Lance Ethernet interface R/W
1.A010.0000 1.A013.FFFF 256 KB SCC0 (A and B channels) R/W
1.A014.0000 1.A017.FFFF Reserved
1.A018.0000 1.A01B.FFFF 256 KB SCC1 (A and B channels) R/W
1.A01C.0000 1.A01F.FFFF Reserved
1.A020.0000 1.A023.FFFF 256 KB Dallas TOY chip R/W
1.A024.0000 1.A027.FFFF 256 KB AMD 79C30A ISDN/audio chip R/W
1.A028.0000 1.A1FF.FFFF Reserved
IOCTL ASIC and System Registers 7–3
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