AR# 3165: XC4000EX/XL: Some BUFGEs (Eearly buffers) are faster than others
AR# 3165
XC4000EX/XL: Some BUFGEs (Eearly buffers) are faster than others
説明
The BUFGEs 3, 4, 7, and 8 are faster than the BUFGEs 1, 2, 5 and 6. The speed difference is about 10%. You can find out what BUFGE number corresponds to a specific pin number by referring to the PGCK# pin on the package pinouts.