Artesyn MVME5100, Programmer'S Reference Manual, Page: 298 / 318

MVME5100 VPD Reference Information
MVME5100 Single Board Computer Programmer’s Reference (6806800H17B )
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A.1.8 VPD Definitions - Product Configuration Options Data
The product configuration options data packet consists of a binary bit field. The first bit of the
first byte is bit 0 (i.e., PowerPC bit numbering). An option is present when the assigned bit is a
one.
0C TBD VLSI Device Revisions/Versions Binary
0D 04 Host PCI-Bus Clock Frequency in Hertz (e.g.,
33,333,333 decimal, etc.) Integer (4-
byte) 2
0E 0F L2 Cache Configuration
A table found later in this document further
describes this packet. Binary
0F 04 VPD Revision. A table found later in this section
further describes this packet. Binary
10- BF Reserved
C0-FE User Defined
An example of a user defined packet could be the
type of LCD panel connected in an MPC821
based application.
FF N/A Termination Packet (follows the last initialized
data packet) N/A
Table A-1 VPD Packet Types (continued)
ID# Size Description
Data
Type
Notes
Data size varies, depending on the product configuration/type.
Integer values are formatted/stored in big-endian byte ordering.
This packet may be omitted if the ethernet interface is non-existent, or the ethernet interface
has an associative SROM (e.g., DEC21x4x).
This packet may contain an additional byte following the address data. This additional byte
indicates the ethernet interface number and is specified in applications where the host
product supports multiple ethernet interfaces. For each ethernet interface present, the
instance number is incremented by one starting with zero.