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Old 13 January 2015, 14:33   #1
pandy71
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2 questions: Not used DFFxxx location Copper behavior and Indivision ECS registers

So - i have 2 questions:
How RGA cycle looks when Copper Move something to RESERVED DFFxxx - ths is normal cycle or something else (like RGA set for all RESERVED to for example DFF1FE)?

Is there any description for Indivision ECS(AGA) reserved DFFxxx registers somewhere (for sure Indivision ECS use reserved registers DFF1E0 - DFF1E4)?
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Old 13 January 2015, 15:00   #2
Toni Wilen
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Quote:
Originally Posted by pandy71 View Post
How RGA cycle looks when Copper Move something to RESERVED DFFxxx - ths is normal cycle or something else (like RGA set for all RESERVED to for example DFF1FE)?
It is normal move cycle. I usually set up my logic analyzer to trigger when RGA has some reserved address when doing real A500 tests, using copper move to generate the address.
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Old 13 January 2015, 15:13   #3
pandy71
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Quote:
Originally Posted by Toni Wilen View Post
It is normal move cycle. I usually set up my logic analyzer to trigger when RGA has some reserved address when doing real A500 tests, using copper move to generate the address.
Thx Toni, this mean that Copper can move data to reserved locations (within DFF000 ... DFF1FE) -perfect .
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