DEC 4000 AXP Service Manual page 205

Table B–1 (Cont.) Power System Controller Fault ID Display
Fault ID Display (Hex)
PSC Module Faults
F + PSC fault LED on
F + PSC fault LED on
F + PSC fault LED on
EFFF + PSC fault LED on
E000 + PSC fault LED on
E012 + PSC fault LED on
E013 + PSC fault LED on
E014 + PSC fault LED on
E015 + PSC fault LED on
E016 + PSC fault LED on
E019 + PSC fault LED on
E020 + PSC fault LED on
E021 + PSC fault LED on
E023 + PSC fault LED on
E024 + PSC fault LED on
E025 + PSC fault LED on
E026 + PSC fault LED on
E027 + PSC fault LED on
E028 + PSC fault LED on
Meaning
PSC bias supply failed (NMI occurred)
Unimplemented opcode interrupt occurred
(invalid instruction)
Software trap interrupt occurred (F7 instruction
executed)
Invalid error number (in display_error procedure)
Unused error condition
Masked interrupt occurred (A/D conversion
complete)
Masked interrupt occurred (HSI data available)
Masked interrupt occurred (HSO)
Masked interrupt occurred (HSI pin 0)
Masked interrupt occurred (serial I/O)
Masked interrupt occurred (HSI FIFO fourth
entry)
Masked interrupt occurred (Timer 2 capture)
Masked interrupt occurred (Timer 2 overflow)
Invalid interrupt number ( > 31) received from
8259
IRQ4 occurred (slave 0 to master 8259)
IRQ5 occurred (slave 1 to master 8259)
IRQ6 occurred (slave 2 to master 8259)
Masked IRQ13 occurred (FEU DIRECT 48
became okay)
Masked IRQ14 occurred (FEU SWITCHED 48
became okay)
Power System Controller Fault Displays B–3
FRU
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
PSC
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