Clocking in Virtex II - DMC clock to DAC, howto?

[osbourne]

Hi,

I have connected an external clock to a global clock pin (GCLK) of the Virtex II 6000 FPGA. This clock is internally connected to a DCM to generate another clock (multiple of the external clock).

Now I want the DCM generated clock connect to a DAC as a sampling clock. Do I have to connect the internally generated clock (by the DCM) again to a GCLK pin or is it possible to connect outgoing clocks to a general purpose pin ?

 

[dolby.yang]

Re: Clocking in Virtex II

you can work on this flow:

external clk(GCLK PIN) --->IBUFG------>DCM-------->BUFG------->output(use IOB's reg)---->normal I/O pin.