Compaq AlphaServer ES45 Service Manual page 10

Appendix C DPR Address Layout
Appendix D Registers
D.1 Ibox Status Register (I_STAT) ............................................................. D-2
D.2 Memory Management Status Register (MM_STAT) .......................... D-5
D.3 Dcache Status Register (DC_STAT)..................................................... D-6
D.4 Cbox Read Register .............................................................................. D-7
D.5 Exception Address Register (EXC_ADDR) .......................................... D-9
D.6 Interrupt Enable and Current Processor Mode Register (IER_CM).. D-10
D.7 Interrupt Summary Register (ISUM) ................................................ D-12
D.8 PAL Base Register (PAL_BASE) ....................................................... D-14
D.9 Ibox Control Register (I_CTL)............................................................ D-15
D.10 Process Context Register (PCTX)....................................................... D-20
D.11 21274 Cchip Miscellaneous Register (MISC) ..................................... D-23
D.12 21274 Cchip CPU Device Interrupt Request Register (DIRn, n=0,1,2,3)
............................................................................................................ D-26
D.13 21274 Array Address Registers (AAR0-AAR3).................................. D-27
D.14 Pchip System Error Register (SERROR) ........................................... D-29
D.15 Pchip A/G PCI Error Register (GPERROR, APERROR) ................... D-31
D.16 Pchip AGP Error Register (AGPERROR) .......................................... D-35
D.17 DPR Registers for 680 Correctable Machine Check Logout Frames . D-37
D.18 DPR Power Supply Status Registers ................................................. D-40
D.19 DPR 680 Fatal Registers.................................................................... D-41
D.20 CPU and System Uncorrectable Machine Check Logout Frame ....... D-42
D.21 Console Data Log Event Environmental Error Logout Frame (680
Uncorrectable).................................................................................... D-43
D.22 CPU and System Correctable Machine Check Logout Frame ........... D-44
D.23 Environmental Error Logout Frame (680 Correctable) ..................... D-45
D.24 Platform Logout Frame Register Translation.................................... D-46
Appendix E Isolating Failing DIMMs
E.1 Information for Isolating Failures ........................................................E-2
E.2 DIMM Isolation Procedure....................................................................E-3
E.3 EV68 Single-Bit Errors .......................................................................E-19
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