Intel SRMK2 - Server Platform - 0 MB RAM, Technical Specifications

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Intel® SRMK2 Internet Server Technical Product Specification 72
Table 49: System information (INT15h) functions
Function (AX) Description
DA12h New cache services
DA8Ch Get version information
DA92h Processor information
The following sections describe each function, showing the values in processor registers on call
and return.
7.3.4.1 New Cache Services
Table 50: New Cache Services
Call With Description
AH = Dah
AL = 12h
CL = 0 Disable Cache
CL = 1 Enable Cache
CL = 2 Read Cache Status
CL = 3 Set Writeback Mode
CL = 4 Set Write-through Mode
Returns Description
AH = bit 0 = 0 Disable Cache
= 1 Enable Cache
AH = bit 1 = 0 Write-through Mode
= 1 Write-back Mode
CX = bit 15 Size Information Valid Flag
= bits 14::0 Size of L2 Cache in 32KB
blocks
CF = 1,
AH = 86h
Function not supported
!
NOTE
The SRMK2 does not support switching from writeback to write-through modes during runtime. This function is not
supported if the processor is not in real mode.