AR# 11255: 3.1i Virtex-II PAR - Router does not always route the differential clock inputs correctly.
AR# 11255
3.1i Virtex-II PAR - Router does not always route the differential clock inputs correctly.
描述
Keywords: clock, differential, router, routed
Urgency: Standard
General Description: PAR fails to route differential clock inputs correctly. (A specific case seen used IBUFGDS_LVDS_33 to feed the DCM CLKIN pin, and the router did not use the correct routing resources.)