piclist 2002\12\07\012730a >
Thread: SX18 internal RAM
www.piclist.com/techref/ubicom/devices.htm?key=sx18
face picon face BY : Jinx email (remove spam text)



> The RAM bank addresses that you mention are for an SX48 or
> SX52. The SX18/20/28 RAM banks are at $30-3F, $50-5F,
> $70-7F, $90-9F, $B0-BF, $D0-DF and $F0-FF

The locations I quoted were from the SX-Key Development Manual,
which, now that you've pointed it out and I double-check, I see is just
a simplistic form of the SX18 datasheet. It's actually misleading
because it differs so much from the SX ds

> Your method of allocating the variables and using FSR is correct,
> just use the addresses above. You could also just use the BANK
> instruction, like bank $30

Thanks. My fault for not referring back to the SX manual, although
a piece of example code to illustrate would have been nice

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