Digital Equipment DECstation 5000/100 Series, Maintenance Manual

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Physical address space
Table 3-3 lists the system hardware physical addresses and the
FRUs where they are located. In the event of a memory error,
this table will help to isolate which FRU should be replaced.
Table 3-3. Hardware Physical Addresses
Physical Address Range Indicated Hardware
0x00000000 to 0x07FFFFFF Memory array banks 0 to 7
0x08000000 to 0x0BFFFFFF Reserved
0x0C000000 to 0x0DFFFFFF Memory registers
0x0E000000 to 0x0FFFFFFF CPU control ASIC registers
0x10000000 to 0x13FFFFFF Slot 0, TURBOchannel option
0x14000000 to 0x17FFFFFF Slot 1, TURBOchannel option
0x18000000 to 0x1BFFFFFF Slot 2, TURBOchannel option
0x1C000000 to 0x1FFFFFFF Base system hardware, identified as slot 3
in commands and error messages, includes
the subsystems listed below
0x1C000000 to 0x1C03FFFF System ROM
0x1C040000 to 0x1C07FFFF I/O control registers and DMA pointers
0x1C080000 to 0x1C0BFFFF Ethernet address PROM
0x1C0C0000 to 0x1C0FFFFF Ethernet interface
0x1C100000 to 0x1C13FFFF SCC(0) registers
0x1C140000 to 0x1C17FFFF Reserved
0x1C180000 to 0x1C1BFFFF SCC(1) registers
0x1C1C0000 to 0x1C1FFFFF Reserved
0x1C200000 to 0x1C23FFFF Real-time clock
0x1C240000 to 0x1C29FFFF Reserved
0x1C300000 to 0x1C33FFFF SCSI interface
0x1C340000 to 0x1C37FFFF Reserved
0x1C380000 to 0x1C3BFFFF SCSI DMA
0x1C3C0000 to 0x1FBFFFFF Reserved
0x1FC00000 to 0x1FC3FFFF Boot ROM
0x1FC40000 to 0x1FFFFFFF Reserved
(continued on next page)
Troubleshooting Tools 3–21