cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 233

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
ACC Register Descriptions
5.3.1
5.3.1.1
MSR Address
Type
Reset Value
5.3.1.2
MSR Address
Type
Reset Value
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
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
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
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
63:24
63:20
18:16
23:8
Bit
7:0
Bit
19
Standard GeodeLink Device MSRs
GeodeLink Device Capabilities MSR (ACC_GLD_MSR_CAP)
GeodeLink Device Master Configuration MSR (ACC_GLD_MSR_CONFIG)
RSVD
Name
RSVD
DEV_ID
REV_ID
Name
RSVD
PREFETCH_SEL
FIX_PREFETCH
51500000h
RO
00000000_002330xxh
51500001h
R/W
00000000_0000F000h
RSVD
Description
Reserved. Reads return 0.
Device ID. Identifies module (2330h).
Revision ID. Identifies module revision. See CS5535 I/O Companion Device Errata
document for value.
Description
Reserved. Reads return 0.
Select Flexible Prefetch Policy.
0: Fixed read prefetch policy is selected. (Default)
1: The ACC establishes prefetch policy.
Fixed Read Prefetch Policy.
000: None. Each read takes a complete trip to memory.
001: Initial read 08 bytes. Read next 8 only when requested.
010: Initial read 16 bytes. Read next 16 only when requested.
011: Initial read 32 bytes. Read next 32 only when requested.
100: Initial read 32 bytes. Read next 32 when 16 bytes left.
101, 110, and 111: Reserved.
ACC_GLD_MSR_CONFIG Bit Descriptions
ACC_GLD_MSR_CONFIG Register Map
ACC_GLD_MSR_CAP Bit Descriptions
(Continued)
ACC_GLD_MSR_CAP Register Map
DEV_ID
RSVD
RSVD
233
RSVD
9
9
8
8
7
7
6
6
PRI
5
5
REV_ID
4
4
3
3
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2
2
PID
1
1
0
0