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AR# 819

XC5200: Dedicated GCLK pins for I/O when using BUFGP

Solution

1

On the 4k series, the dedicated GCLK pin's IOB cannot be used for I/O if that IOB's
BUFGP is used by an internal node. However, in the 5200 family, when a global
buffer is used by an internal node, one can still use the corresponding dedicated
GCLK pin for both input and output.

2

AR# 819
Date Created 02/22/1996
Last Updated 03/03/2004
Status Archive
Type General Article