SLAS191A Datasheet, PDF (78/86 Pages) Texas Instruments – Starter Kit Evaluation Kit Manual

Reset
Set Location of Identification
Address Pointer to E9DEh
Decrement Identification
Address Pointer By 22h
no
Identification ?
yes
Contents of Identification
Address = 0000h
Identification ?
Contents of Identification
Address = AA55h
Start Monitor
Copy EPROM Interrupt Vectors
And Identification AA55h
To RAM Interrupt Vectors
Jump To New Reset Vector
Address In RAM
Emergency Return
yes
To Monitor ?
(Optional – User Defined
yes: BR Ret_Mon)
Figure 6–1. Identifying AA55h After Reset
NOTE:
It is important that the emergency return to the Monitor routine works properly and
has been tested in RAM before burning it into the EPROM. If the actual
identification address contains address AA55h, the Monitor will NEVER start again.
Be sure to program the key as the last step in the evaluation of a program, after all
errors have been fixed.
6–2