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AR# 31100

CPLD CoolRunner-II - Can the specialty pins be used as general I/O?

Description

CoolRunner-II has dual purpose pins, such as GTS, GCK, GSR, CDRST and DGE. Can they be used as a general user I/O?

Solution

The dual purpose pins GTS, GCK, GSR, CDRST and DGE can all be used as general user I/O.

If the clock divider is used in the design, then CDRST cannot be used as a general purpose I/O, even if the reset port of the clock divider is not used. See (Xilinx Answer 24517).

AR# 31100
Date Created 06/04/2008
Last Updated 12/15/2012
Status Active
Type General Article