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564 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
Typ e 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
313029282726252423222120191817161514131211109876543210
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
Typ e 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
313029282726252423222120191817161514131211109876543210
RSVD
MSR_INIT
MSR_INIT Bit Descriptions
Bit Name Description
63:1 RSVD Reserved.
0MSR_INIT MSR_INIT. Value of INIT signal driven to CPU.