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different function pin of CY7C68013
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different function pin of CY7C68013

lgeorge123 posted on 29 May 2012 7:12 AM PST
Member
3 Forum Posts

  Is it possible to set PA0 and PA1 as interrupt input while using PA4 and PA5 as fifoaddr at the same time ??




Re: different function pin of CY7C68013

Gayathri posted on 30 May 2012 10:30 PM PST
Cypress Employee
428 Forum Posts

Hi George,

 

In Slave FIFO mode, PA4 and PA5 by default act as FIFOADR lines. Thus, in order to use PA4 & PA5 as FIFOADR lines, you just need to configure FX2LP in Slave FIFO mode. Once in Slave FIFO mode, you can select between the functions of PA0/1 pins. It can either be used as GPIO or INT pins. In order to use them as INT pins set PORTACFG.0/PORTACFG.1 accordingly.

i.e. It is possible to use PA0/1 as INT pins, and PA4/5 as FIFOADR lines. For that the settings should be as follows:

IFCONFIG[0:1] = 11

PORTACFG[0] = 1

PORTACFG[1] = 1

 

Regards,

Gayathri






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