1 cpu a20m signal (msr_a20m), 2 cpu init signal (msr_init), Cpu a20m signal (msr_a20m) – AMD Geode LX [email protected] User Manual
Page 564: Cpu init signal (msr_init)
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AMD Geode™ LX Processors Data Book
GeodeLink™ Control Processor Register Descriptions
33234H
6.14.5
GLCP Specific MSRs - GLCP Companion Device Interface MSRs
6.14.5.1 CPU A20M Signal (MSR_A20M)
6.14.5.2 CPU INIT Signal (MSR_INIT)
MSR Address
4C000031h
Type
R/W
Reset Value
00000000_00000000h
MSR_A20M 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
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
RSVD
MSR_A20M
MSR_A20M Bit Descriptions
Bit
Name
Description
63:1
RSVD
Reserved.
0
MSR_A20M
A20M. Value of A20M driven to CPU logic.
MSR Address
4C000033h
Type
R/W
Reset Value
00000000_00000000h
MSR_INIT 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
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
RSVD
MSR_INIT
MSR_INIT Bit Descriptions
Bit
Name
Description
63:1
RSVD
Reserved.
0
MSR_INIT
MSR_INIT. Value of INIT signal driven to CPU.