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Altera HardCopy II Clock Uncertainty Calculator User Manual

Page 47

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Altera Corporation

A–15

HardCopy II Clock Uncertainty Calculator User Guide

Figure A–16

shows an example of a clock-pair = CLK6 to CLK7

Figure A–16. Intra-Clock Domain with Cascaded PLLs and 2 PLL Outputs

Table A–16

shows input of the PLL index for

Figure A–16

, with respect to

the source and destination clocks.

INBUF

PLL9

PLL11

CLK6

CLK7

Source

Clock

Destination

Clock

Source
Register

Destination
Register

CLK5

Table A–16. Location of Input PLLs

Source Clock

Destination Clock

1st PLL

2nd PLL

1st PLL

2nd PLL

9

11

9

11