Dynamic Engineering IP-CF Manual do utilizador - Página 13

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ID PROM

Every IP contains an ID PROM, whose size is at least 32 x 8 bits. The ID PROM aids in

software auto configuration and configuration management. The user's software, or a

supplied driver, may verify that the device it expects is actually installed at the location it

expects, and is nominally functional. The ID PROM contains the manufacturing revision

level of the IP. If a driver requires that a particular revision to be present, it may check

for it directly.

The location of the ID PROM in the host's address space is dependent on which carrier

is used.

Standard data in the ID PROM on the IP-CF is shown in the figure below. For more

information on IP ID PROMs refer to the IP Module Logic Interface Specification,

available from Dynamic Engineering.

Each of the modifications to the IP-CF board will be recorded with a new code in the

DRIVER ID and reserved fields.

Address

Data

ASCII "I"

ASCII "P"

ASCII "A"

ASCII "H"

Manufacturer ID

Model Number

Revision

reserved

Driver ID, low byte

Driver ID, high byte

No of extra bytes used

CRC

FIGURE 4

IP-CF

$49

$50

$41

$48

$1E

$05

$A0

$00

$0C

$4D

E m b e d d e d

S o l u t i o n s

IP-CF ID PROM

P g

1 3

o f

2 0