Owner`s manual

Figure 4–61: Bus Error Extension Register 0 (XBEER0)
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0987 3210
MBZ
REQUIRED
Second Error Occurred
(SEO)
Only LOC Response
(OLR)
Unexpected Read
Response (URR)
XMI−RELATED
Unexpected Unlock Write (UUW)
MCA−Chip XMI Parity Error (MCAXPE)
MDA−Chip XMI Parity Error (MDAXPE)
Unlock Write Pending (UWP)
WRITEBACK−RELATED
0
Address/Command Parity Error (ACPE)
Write Data Parity Error (WPDE)
Cache Fill Error (CFE)
DAL−RELATED
WBack1 Failing DAL Qualifier (WFDQ1)
WBack1 Second Error Occurred (WSEO1)
WBack1 Command NO ACK (WCNAK1)
WBack1 Write Data NO ACK (WWDNAK1)
WBack1 Transaction Timeout (WTTO1)
WBack1 Tagged Bad Data (WTBDAT1)
WBack1 Sequence Error (WSQE1)
WBack1 Corrected Data Error (WCDE1)
WBack0 Failing DAL Qualifier (WFDQ0)
WBack0 Second Error Occurred (WSEO0)
WBack0 Command NO ACK (WCNAK0)
WBack0 Write Data NO ACK (WWDNAK0)
WBack0 Transaction Timeout (WTTO0)
WBack0 Tagged Bad Data (WTBDAT0)
WBack0 Sequence Error (WSQE0)
WBack0 Corrected Data Error (WCDE0)
msb−p350R−90
4–34 VAX 6000 Model 500 Mini-Reference