7
ID Space
Every IndustryPack must have an ID PROM. The ID space on each IndustryPack is fixed
at 128, 16-bit words.
The ID space above 32 Bytes is for future use.
The ID PROM is
required by the ANSI/VITA 4 IndustryPack Module Specification 1.0. The ID PROM data
is at least 12 Bytes and is found in the lowest byte of the first 12 words. Newer
IndustryPacks may support the ID PROM Data Format II that uses 16-bit words instead
of 8-bit bytes. The ID PROM provides information about the IndustryPack, which is
defined in the IndustryPack Specification and the IndustryPack's User Manual. This
information includes the IndustryPack's manufacturer, model code, and manufacturing
revision level. It may also include a driver identification code and calibration information.
The figure below lists the required information in each ID PROM. For additional
information, see the IndustryPack Specification and the Users Manual for each
IndustryPack.
$FF
user
space
2A
2*nn
pack specific space
$18
$16
CRC
$14
No of bytes used
[ = nn ]
$12
Driver ID, high byte
$10
Driver ID, low byte
$0E
reserved
($00)
$0C
Revision
$0A
Model
No
$08
Manufacturer
ID
$06
ASCII
"C"
($43)
$04
ASCII
"A"
($41)
$02
ASCII
"P"
($50)
$00
ASCII
"I"
($49)
Figure 4. Required IndustryPack ID PROM Information
Memory Space Accesses
The use of IndustryPack memory space is optional, and two sizes are available.
Implementation among IndustryPacks varies widely. It may be used for RAM, EPROM,
Flash, video frame buffers, communication data buffers, SRAM, local processor space,
expanded register space, special functions, or a combination thereof. The memory is
generally, but not always, 16-bits wide.
The PCI-60A supports two configurations of IndustryPack memory space. The standard
map allocates the full 8 MB of space per IndustryPack. The reduced map configuration
allocates a 2 KB partition for each of the six IndustryPacks. This is adequate to service
many IndustryPacks that use the memory space as an alternate or expanded register
space. It is not sufficient for some IndustryPack designs that implement real memory in
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