AR# 819: XC5200: Dedicated GCLK pins for I/O when using BUFGP
AR# 819
XC5200: Dedicated GCLK pins for I/O when using BUFGP
解决方案
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.