Xilinx VC709 Si570 Programming page 29

VC709 Si570 Programming
For this equation,
– Fout = 156.25
– RFREQ = 43.7498387210071086883544921875
– HSDIV = 4
– N1 = 8
– Fout x HSDIV x N1 = 5000
– fXTAL = 5000 / RFREQ
Note: Presentation applies to the VC709