Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Error placing clock pin with Clock Control Block

Hello all, It appears I could use some assistance. Some background ... The device is an EP2SGX130F1508. The problem in question concerns two clock inputs. The two clock inputs are from t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

As far as I understand, there are various reconfiguration options for GX clocks, but they don't use regular clock control blocks. The dedicated ref clock inputs are wired directly to the GX PLL reference clock multiplexers. A clock reconfiguration can either utilize this multiplexers or occur after the PLLs.