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The fields are defined as follows:
1. Four bytes are reserved for the revision or version of this structure.
2. Twelve bytes are reserved for the serial number of the board in
3. Sixteen bytes are reserved for the board ID in ASCII format. For
4. Sixteen bytes are reserved for the printed wiring assembly (PWA)
5. Four bytes contain the speed of the board in MHz. The first two
6. Six bytes are reserved for the Ethernet address. The address is
7. These two bytes are reserved.
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This revision is stored in ASCII format, with the first two bytes
being the major version numbers and the last two bytes being the
minor version numbers. For example, if the version of this structure
is 1.0, this field contains:
0100
ASCII format. For example, this field could contain:
000000470476
example, for an MVME162LX board with MC68040, SCSI,
Ethernet, 4MB DRAM, and 128 KB SRAM, this field contains:
MVME162-223 (The 11 characters are followed byfive
blanks).
number assigned to this board in ASCII format. This includes the
prefix. This is for the main logic board if more than one board
01-W
is required for a set. Additional boards in a set are defined by a
structure for that set. For example, for an MVME162LX board with
MC68040, SCSI, Ethernet, 4MB DRAM, and 128 KB SRAM at
revision A, the PWA field contains:
01-W3866B01A (The 12 characters are followed by
four blanks.)
bytes are the whole number of MHz and the second two bytes are
fractions of MHz. For example, for a 25.00 MHz board, this field
contains:
2500
stored in hexadecimal format. (Refer to the detailed description in
Chapter 4.) If the board does not support Ethernet, this field is filled
with zeros.
Memory Maps
1
1-47
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