AMD Geode LX 800@0.9W - Manual (Page 76)

76 AMD Geode™ LX Processors Data Book
GLIU Register Descriptions 33234H
4.2.3.6 DA Compare Value Low (DA_COMPARE_VAL_LO[0:3]
The DA Compare Value and the DA Compare Mask enable traps on specific transactions. A hit to the DA Compare is deter-
mined by hit = (DA_IN & DA_COMPARE_MASK) == DA_COMPARE_VAL). A hit can trigger the DA_CMP error sources
when they are enabled. The value is compared only after the packet is arbitrated.
Data Compare Value Low (DA_COMPARE_VAL_LO[0])
Data Compare Value Low (DA_COMPARE_VAL_LO[1])
Data Compare Value Low (DA_COMPARE_VAL_LO[2])
Data Compare Value Low (DA_COMPARE_VAL_LO[3])
MSR Address GLIU0: 100000D0h
GLIU1: 400000D0h
Type R/W
Reset Value 00001FFF_FFFFFFFFh
MSR Address GLIU0: 100000D4h
GLIU1: 400000D4h
Type R/W
Reset Value 00001FFF_FFFFFFFFh
MSR Address GLIU0: 100000D8h
GLIU1: 400000D8h
Type R/W
Reset Value 00001FFF_FFFFFFFFh
MSR Address GLIU0: 100000DCh
GLIU1: 400000DCh
Type R/W
Reset Value 00001FFF_FFFFFFFFh
DA_COMPARE_VAL_LO[0:3] Register
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
RSVD DALO_VAL
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DALO_VAL
DA_COMPARE_VAL_LO[0:3] Bit Descriptions
Bit Name Description
63:45 RSVD Reserved.
44:0 DALO_VAL DA Packet Compare Value [44:0]. This field forms the lower portion of the data value,
which is compared to the logical bit-wise AND of the incoming data value and the data
value compare mask in order to determine a ‘hit’. The “HI” and “LO” portions of the
incoming data, the compare value, and the compare mask, are assembled into complete
bit patterns before these operations occur.