HP 9000 Series 310 Service Information Manual page 124

Message
5E
58
52
4C
46
40
3A
34
2E
28
22
1C
16
10
OA
04
FE
F8
F2
EC
E6
EO
Table 5-3b, Boot ROM Unexpected Failure Messages
Message: UNEXPECTED USE OF FFFFFFhh
What Unexpected Event Occurred
Trap 9
A
B
C
D
E
F
Pseudo vector 1 RESET from key board
Pseudo vector 2 Keyboard timeout (fast handshake)
Pseudo vector 3 Battery backup interrupt
Pseudo vector 4 Non-Maskable Interrupt from backplane
Spurious interrupt
Vectored interrupt 0
1
2
3
4
5
6
7
Format Error, coprocessor violation, or unknown
MC68881 Coprocessor exception vectors
114
Troubleshooting