Additional 68HC11 Registers?

Tom Sharpe twsharpe at mtco.com
Tue Sep 15 03:04:37 GMT 1998



Mike Pitts wrote:

> Hi all,
>
> I seem to have an ECU which has register addresses which go
> beyond what I have in my HC11 manual.  My manual list registers
> up to the CONFIG register at  (Register Base + $3F).
>
> But I am finding register-ish code setting locations such as
> (Register Base + $60).
>
> Does anyone know what registers exist beyond $3F??

If the register block is mapped to the internal RAM ($0000-$00FF0) there
is "User Area" available that can be access like a register. I didn't
print the whole manual but it is available at Motorola's site. Good
luck  Tom




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