ISSUES to be aware of (III)

• Timing report often does not show 100% coverage of connections

Definition: A “connection” is a source/driver pairing. The following has 13

connections (paths internal to IOB/CLB are not connections):

OUT1

Q

D

Q

D

CLOCK

OUT2

Function

Generator

Function

Generator

1

2

3

4

5

6

7

8

9

10

11

STARTUP

12

TIG

CY4

CY4

Function

Generator

OUT2

13

Force-1

Examine-CI

Not covered by usual set of

timespecs (can use MAXDELAY

on net to constrain)

Static signal driving LUT;

not covered by usual set of

timespecs (exotic case)

Removed from analysis

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