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ST72264 and the RIM/SIM instructions

alexis23
Associate II

‎2003-01-06 02:52 AM

Posted on January 06, 2003 at 11:52

ST72264 and the RIM/SIM instructions

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alexis23
Associate II

‎2003-01-06 01:33 AM

Posted on January 06, 2003 at 10:33

Hello,

What do exactly the RIM and SIM instructions on the ST72264 mcu ?

The code register CC contains two IT bits: I0 and I1, while 'standart' SMI/RMI behaviour is only specified for the former I (and now I0) bit.

Thank you
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simms
Associate II

‎2003-01-06 02:29 AM

Posted on January 06, 2003 at 11:29

SIM writes I1:0 = 11 (level 3)

RIM writes I1:0 = 10 (level 0)

This is specified in the datasheet ''instruction set'' chapter.
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alexis23
Associate II

‎2003-01-06 02:52 AM

Posted on January 06, 2003 at 11:52

Ah, yes in fact. Thank you

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