14.22 CacheErr Register (27)

CacheErr Register Format for Primary Data Cache Errors


Figure 14-25 shows the format of the CacheErr register when a primary data cache error occurs.



Figure 14-25 CacheErr Register Format for Primary Data Cache Errors

EW: set when CacheErr register is already holding the values of a previous error

EE: tag error on an inconsistent block

D: data array error (way1 || way0)

TA: tag address array error (way1 || way0)

TS: tag state array error (way1 || way0)

TM: tag mod array error (way1 || way0)

PIdx: primary cache virtual double word index, VA[13:6]


0: Reserved. Must be written as zeroes, and returns zeroes when read. (See page 224 of Errata.)





Copyright 1995, MIPS Technologies, Inc. -- 29 JAN 96


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