User`s guide

DWMBB/A Module Registers
VAXBI Error Address Register (ABEAR)
VAXBI Error Address Register (ABEAR)
ABEAR logs address and length information of failed IBUS DMA and interrupt
transactions that are detected by the DWMBB/A module. The logged
addresses are in VAXBI format. The invalid VAXBI command/address is
logged on the first occurrence of one of the following errors:
• Invalid PFN, AESR<11>
• Correctable DMA ECC Error, AESR<10>
• Uncorrectable DMA ECC Error, AESR<9>
• Invalid VAXBI Address, AESR<8>
• Internal Error, AESR<7>
• IBUS DMA-A Data Parity Error, AESR<4>
• IBUS DMA-A C/A Parity Error, AESR<3>
• IBUS DMA-B Data Parity Error, AESR<2>
• IBUS DMA-B C/A Parity Error, AESR<1>
ABEAR locks the VAXBI address until the error status bit is cleared by
software. Once the error status bit is cleared, another VAXBI error causes the
overwrite of the previous error address.
ADDRESS
XMI nodespace base address + 0000 0030
3
1
3
0
2
9 0
Failing VAXBI Address
VAXBI Failing Address Length (BI FLN)
msb−p111−89
bits<31:30>
Name: VAXBI Failing Address Length
Mnemonic: BI FLN
Type: RO, 0
The VAXBI Failing Address Length field logs IBUS D<31:30> during a
failed IBUS DMA or interrupt transaction.
3–94