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Table A–3 (Cont.) Console Halt Reason Code Definitions
Reason Code
(Hex)
Definition
0015
Unexpected VAXELN error occurred
0016
A VAXELN kernel fatal error has occurred
0017
Initializing VAXELN before starting reconfiguration
A.4 Error Register Descriptions
A.4.1 System Fault (SYSFLT) Register
This register is not rail or zone unique (Figure A–1). Software does not take
special precautions when reading this register. In addition, the register is
continuously updated. The setting of one error bit does not prevent other bits
from being set. The register contains bits which cause IPL29 interrupts.
All bits in this register have the following characteristics: default = 0, type = ro,
reset = hr.
Figure A–1 System Fault Register
07
06
05
04
03
02
01
00
15
14
13
12
11
10
09
08
23
22
21
20
19
18
17
16
31
30
29
28
27
26
25
24
MR−0583−92RAGS
SFB
XLM
LCK
RSA
CBG
PWG
CPB
CPA
HTB
HTA
MFB
MFA
MDB
MDA
MSB
MSA
JDB
JDA
JSB
JSA
NXB
NXA
IOB
IOA
DNB
DNA
DMB
DMA
Register Address: CPU = E110 1100 (CCA offset = 15C)
[31]: SFB - Solid Fault Bit. Latched when an automatic retry on an I/O
operation fails to complete properly.
[30:28]: XLM - Xlink Mode [2:0]. This field, sourced by the Xlink, is read-only
and indicates the Xlink mode specified in Table A–4.
Table A–4 Xlink Mode Coding
Code
Mode
000
Xlink Off
001
Xlink Slave
010
Xlink Master
011
Xlink Duplex
100
Not Used
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A–4 Miscellaneous System Information