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AURIX™ Forum Discussions

indra
Level 1
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5 replies posted 10 sign-ins 5 sign-ins
‎Mar 10, 2023 04:34 AM
‎Mar 10, 2023 04:34 AM

convert PCXI ( PSXO PSXS) to CSA address pointer in tc39x

HI,

How to convert pcxs and pcxo fields in pcxi to csa address pointer by pcx

BR,

Indra

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Prudhvi
Moderator
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25 likes received 50 solutions authored 250 sign-ins
‎Mar 10, 2023 05:29 AM
‎Mar 10, 2023 05:29 AM

Re: convert PCXI ( PSXO PSXS) to CSA address pointer in tc39x

Hello,

Please see "Figure 13 Generation of the Effective Address of a Context Save Area (CSA)" under the section "4.1.1 Context Save Area " in the TC3xx_Architecture_vol1  for details.

In simple, from actual PCXI register you can decode the address of previous context (PCXS + 6 bit shifted PCXO followed by 0 bits).

Regards,

Prudhvi. 

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