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4 request compare value (rq_compare_val[0:3 – AMD Geode LX [email protected] User Manual

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74

AMD Geode™ LX Processors Data Book

GLIU Register Descriptions

33234H

4.2.3.4

Request Compare Value (RQ_COMPARE_VAL[0:3]

The RQ Compare Value and the RQ Compare Mask enable traps on specific transactions. A hit to the RQ Compare is
determined by hit = (RQ_IN & RQ_COMPARE_MASK) == RQ_COMPARE_VAL). A hit can trigger the RQ_CMP error
sources when they are enabled. The value is compared only after the packet is arbitrated.

Request Compare Value (RQ_COMPARE_VAL[0])

Request Compare Value (RQ_COMPARE_VAL[1])

Request Compare Value (RQ_COMPARE_VAL[2])

Request Compare Value (RQ_COMPARE_VAL[3])

2

HIT_ASMI

Assert ASMI on Descriptor Hit. The descriptor hits are ANDed with the masks and then
all ORed together.

0: Disable.
1: Enable.

1

HIT_DEC

Decrement Counter on Descriptor Hit. The descriptor hits are ANDed with the masks
and then all ORed together.

0: Disable.
1: Enable.

0

HIT_LDEN

Load Counter on Descriptor Hit. The descriptor hits are ANDed with the masks and
then all ORed together.

0: Disable.
1: Enable.

STATISTIC_ACTION[0:3] Bit Descriptions

Bit

Name

Description

MSR Address

GLIU0: 100000C0h
GLIU1: 400000C0h

Type

R/W

Reset Value

001FFFFF_FFFFFFFFh

MSR Address

GLIU0: 100000C2h
GLIU1: 400000C2h

Type

R/W

Reset Value

001FFFFF_FFFFFFFFh

MSR Address

GLIU0: 100000C4h
GLIU1: 400000C4h

Type

R/W

Reset Value

001FFFFF_FFFFFFFFh

MSR Address

GLIU0: 100000C6h
GLIU1: 400000C6h

Type

R/W

Reset Value

001FFFFF_FFFFFFFFh

RQ_COMPARE_VAL[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

RQ_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

RQ_VAL

RQ_COMPARE_VAL[0:3] Bit Descriptions

Bit

Name

Description

63:53

RSVD

Reserved.

52:0

RQ_VAL

Request Packet Value. This is the value compared against the logical bit-wise AND of
the incoming request packet and the RQ_COMPMASK in order to determine a ‘hit”.

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