Owner`s manual
Figure 4–65 (Cont.): KA65A Machine Check Parse Tree
MCHK_BUSERR_READ_DAL (11 hex) (select one)
PCSTS<DAL_DATA_PARITY_ERROR> (PCSTS<9>) (select one)
PCSTS<B_CACHE_HIT> (PCSTS<12>)
Backup cache data parity error
on D−stream read
MAXMI data parity error on
D−stream read
BCSTS<AC PERR> (BCSTS<7>)
msb−p359−90
PCSTS<BUS_ERROR> (PCSTS<11>) (select one)
otherwise
MC−Chip−detected Command/Address
parity error on D−stream read
XBEER<ACPE> (XBEER<29>)
SSCBTR<RWT> (SSCBTR<30>) (select all)
MAXMI−detected Command/Address
parity error on D−stream read
Nonexistent Memory (NXM)
otherwise
(BCSTS<CMD> = read) AND (BCERA = PCERR)
(BCSTS<25:22> = 1 hex) AND (BCERA = IPR126)
Tag parity error on D−stream read
BCSTS<TPERR> (BCSTS<1>)
Valid/Dirty bit parity error on
D−stream read
Inconsistent status (no BCSTS
status bits set)
BCSTS<VDPERR> (BCSTS<2>)
otherwise
Figure 4–65 Cont’d on next page
4–42 VAX 6000 Model 500 Mini-Reference










