Compaq AlphaServer ES40, Service Manual

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D-34 Compaq AlphaServer ES40 Service Guide
Table D–12 21272-CA Pchip Error Register Fields (Continued)
Name Bits Type
Initial
State
Description
RES <15:12> MBZ,
RAZ
0 Reserved
CRE <11> R, WIC 0 Correctable ECC error.
UECC <10> R, WIC 0 Uncorrectable ECC error.
RES <9> MBZ,
RAZ 0 Reserved.
NDS <8> R, WIC 0 No b_devsel_l as PCI master.
RDPE <7> R,W1C 0 PCI read data parity error as PCI
master.
TA <6> R, W1C 0 Target abort as PCI master.
APE <5> R, W1C 0 Address parity error detected as
potential PCI target.
SGE <4> R, W1C 0 Scatter-gather had invalid page table
entry.
DCRTO <3> R, W1C 0
Delayed completion retry timeout as PCI
target.
PERR <2> R, W1C 0
b_perr_l sampled asserted.
SERR <1> R, W1C 0 b_serr_l sampled asserted.
LOST <0> R, W1C 0 Lost an error because it was detected
after this register was frozen or while in
the process of clearing this register.