HP 425s Specifications download pdf (Page 105)

HP-UX Compatible Mode Error Messages

‘UNEXPECTED” Error Messages

Seveml “UNEXPECTED failure messagesmaybe displayedat any time. When

the CPU exeeutesan instruction set, certain events are expected to occur. Should

an interrupt (either internally from the CPU or extemall from some other de-

vice)occur and cause a R4M or CPU address to be u

J out of squence, the

followingerror message is displayed

UNEXPECTEDUSE

OF (address)

Table 4-7 lists these me-ssages.The address’5 most si nificant hexadecimaldigits

are FFFFF so only the 3 Least SignificantDigits (f_S ) are used in the table.

When a range of addresses is shown, each address in the range is sixaddresses

apart.

When an “UNEXPECTED failure messageequates to an interrupt level,vec-

tored interrupt, or trap, the followingsituations normally exist:

●

Interruptlevels 1 through Z Can happen at any time and are usually

caused by an interface set to the indicated interrupt level.If the error re-

peats, replaw the CPU board.

CPU traps: Usuallyoccurs when the operating system is being used. A

CPU trap indicates something in the processor cmuits didn’t go right. If

the error repeats, replace the emulator or CPU board.

Other errors: Several things on the CPU/emuiator board in an interface or

processor circuit can cause these errors. If the error repeats, replace the

CPU or emulator board.

Troubleshooting 4-33

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HP 425s Specifications Page 105