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[avr-libc-dev] [task #3693] Add new devices: mega 640-1280-1281-2560-256

From: Marek Michalkiewicz
Subject: [avr-libc-dev] [task #3693] Add new devices: mega 640-1280-1281-2560-2561
Date: Wed, 16 Mar 2005 14:05:34 +0000
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Follow-up Comment #5, task #3693 (project avr-libc):

OK, datasheet is wrong, below is the response from Atmel:

1. Only mega256x push 3 bytes on the stack. mega640 and mega128x push 2 bytes
like previous devices.

2. The byte order for mega256x is the same as for other parts.


(SP) <- low byte

(SP-1) <- high byte

(SP-2) <- extended byte


(SP+1) -> extended byte

(SP+2) -> high byte

(SP+3) -> low byte


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