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MVME5100 VPD Reference Information
BVPD Definitions - L2 Cache Configuration DataThe L2 cache configuration data packet consists of byte fields that show
the size, organization, and type of the L2 cache memory array. Note: The
PPMCBASE does not contain L2 Cache . The following table(s) further
describe the L2 cache memory configuration VPD data packet.
Table B-4. L2 Cache Configuration Data
Byte
Offset Field
Size
(Bytes)
Field Mnemonic Field Description
00 2 L2C_MID Manufacturer’s Identifier (FFFF =
Undefined/Not-Applicable)
02 2 L2C_DID Manufacturer’s Device Identifier (FFFF =
Undefined/Not-Applicable)
04 1 L2C_DDW Device Data Width (e.g., 8-bits, 16-bits, 32-
bits, 64-bits, 128-bits)
05 1 L2C_NOD Number of Devices Present
06 1 L2C_NOC Number of Columns (Interleaves)
07 1 L2C_CW Column Width in Bits
This will always be a multiple of the device’s
data width.
08 1 L2C_TYPE L2 Cache Type:
00 - Arthur Backside
01 - External
02 - In-Line
09 1 L2C_ASSOCIATE Associative Microprocessor Number (If
Applicable)
0A 1 L2C_OPERA TIO NMO DE Operation Mode:
00 - Either Write-Through or Write-Back
(S/W Configurable)
01 - Either Write-Through or Write-Back
(H/W Configurable)
02 - Write-Through Only
03 - Write-Back Only