Environmental Error Logout Frame
These logout frames are used for all (Tru64 UNIX, OpenVMS and Alpha 21264 processor SCB 680) system environmental correctable and uncorrectable errors.
Environmental Error Logout Frame |
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This table shows the format of the Environmental Error Logout Frame (MCLF) built by the console firmware used for Environmental Errors vectored through SCB entry 680h. Currently the only environmental fault supported is fan failure.
The "r" in the table below, when set, indicates that the error is retryable.
The "s" in the table below, when set, indicates that this is the second error.
The offset from the CEF below is shown for reference only.
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Offset from |
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63 |
62 |
61 |
32 |
31 |
0 |
MCLF |
CEF |
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R |
s |
SBZ |
Frame Size |
000h |
068h |
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System Offset |
EV6 Offset |
008h |
070h |
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MCHK Frame Revision |
MCHK Code |
010h |
078h |
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Environmental Error Logout Frame - System Data |
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This table shows the format of the Environmental Error Logout Frame (MCLF) built by the console firmware used for Environmental Errors vectored through SCB entry 680h. Currently the only environmental fault supported is fan failure.
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Offset from |
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System Data |
MCLF |
CEF |
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Software Error Summary Flags |
000h |
058h |
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CChip CPU0 Device Interrupt Request Register(DIR0) |
008h |
060h |
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CChip Miscellaneous Register (MISC) |
010h |
068h |
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PChip 0 Error Register (P0_PERROR) |
018h |
070h |
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PChip 1 Error Register (P1_PERROR) |
020h |
078h |
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