AMD Geode LX 800@0.9W - Manual (Page 78)

78 AMD Geode™ LX Processors Data Book
GLIU Register Descriptions 33234H
4.2.3.8 DA Compare Mask Low (DA_COMPARE_MASK_LO[0:3])
Data Compare Mask Low
(DA_COMPARE_MASK_LO[0])
Data Compare Mask Low
(DA_COMPARE_MASK_LO[1])
Data Compare Mask Low
(DA_COMPARE_MASK_LO[2])
Data Compare Mask Low
(DA_COMPARE_MASK_LO[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.
MSR Address GLIU0: 100000D2h
GLIU1: 400000D2h
Type R/W
Reset Value 00000000_00000000h
MSR Address GLIU0: 100000D6h
GLIU1: 400000D6h
Type R/W
Reset Value 00000000_00000000h
MSR Address GLIU0: 100000DAh
GLIU1: 400000DAh
Type R/W
Reset Value 00000000_00000000h
MSR Address GLIU0: 100000DEh
GLIU1: 400000DEh
Type R/W
Reset Value 00000000_00000000h
DA_COMPARE_VAL_HI[0:3] Register Map
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_MASK
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_MASK
DA_COMPARE_MASK_LO[0:3] Bit Descriptions
Bit Name Description
63:45 RSVD Reserved.
44:0 DALO_MASK DA Packet Compare Value [44:0]. This field forms the lower portion of the data COMP-
MASK value, which is then bit-wise logically ANDed with the incoming data value before
it is compared to the DA_COMPVAL. 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.