Altera HardCopy II Clock Uncertainty Calculator - Manual (Page 41)

Altera Corporation A–9
HardCopy II Clock Uncertainty Calculator User Guide
Figure A–9 shows an example of a clock-pair = CLK9 to CLK12
Figure A–9. Inter-Clock Domain with Two Independent Clocks with a PLL
Table A–9 shows input of the PLL index for Figure A–9 , with respect to
the source and destination clocks.
INBUF3
INBUF2
CLK9
CLK12
Source
Clock
Destination
Clock
Source
Register
Destination
Register
PLL4
PLL2
Table A–9. Location of Input PLLs
Source Clock Destination Clock
1st PLL 2nd PLL 1st PLL 2nd PLL
4 — 2 —