System ROM,
Continued
Table 2–5
(Continued) System ROM Physical Addresses
Physical Address
Name
Description
2004.008A
System
diagnostic
firmware
revision number
This word contains the system diagnostic
firmware revision number.
2004.008C
Diagnostic
descriptor
This longword contains the physical
address of the beginning of the system
level diagnostic boot block. A value of zero
indicates that there is no system level
diagnostic present in the Model 90 system
firmware ROM.
2004.0090
Pointers to
keyboard map
These two longwords point to the tables
used to translate the LK401 main array
keycodes to character codes. The first
longword contains the physical address
of the beginning of the keyboard tables.
The second longword contains the physical
address of the beginning of the keyboard
mapping tables.
2–15