Wolfgang Wegner

DSPI as GPIO register/pin relationship in MCF5445x

Discussion created by Wolfgang Wegner on Mar 12, 2010
Latest reply on Apr 8, 2010 by Wolfgang Wegner

Hi all,

 

I am trying to debug some things by bit-banging the DSPI pins on my board.

 

While doing so, I think I found a problem in the documentation of the DSPI Pin Assignment Register PAR_DSPI (page 16-28/PDF 368) of MCF54455RM Rev. 5.

 

The documentation reads:

Bit 0: PAR_SCK

Bit 1: PAR_SOUT

Bit 2: PAR_SIN

 

But I think it should be

Bit 0: PAR_SOUT

Bit 1: PAR_SIN

Bit 2: PAR_SCK

 

Can anybody confirm this, or do I have to debug further?
(I also have a simple serial flash connected to DSPI and can access it using the DSPI peripheral, so the pinout in our layout should be correct.)

 

Best regards,

Wolfgang

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