Clock_relation, 18 clock relation, Clock relation – Achronix ACE Version 5.0 User Manual

Page 319

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clock relation

Chapter 5. Tcl Command Reference

[-net

<

arg

>

]

Optional

use the domain of this net

[-unique]

Optional

use a unique domain for
domains with the same
frequency

[-multi]

Optional

with -net or -pin: report a list of
domains instead of a single
domain

[-xp

<

arg

>

]

Optional

select xp value, for use with -freq

[-best]

Optional

select best frequency, for use
with -freq

[-freq]

Optional

return the frequency (MHz);
requires a domain

[-period]

Optional

return the period (ps); requires a
domain

[-phase]

Optional

return the phase; requires a
domain

[-get xp]

Optional

return the xp value; requires a
domain

[-edge type]

Optional

1 for pos-edge, -1 for neg-edge, 0
for combinational; requires a
domain

[-routing type]

Optional

string denoting the routing type,
empty if not set; requires a
domain

[-core]

Optional

1 if used in the core, otherwise 0;
or list of domains used in core

[-driver]

Optional

name of the driving pin or port;
requires a domain

[-clock net]

Optional

name of the clock net; requires a
domain

[-xplist]

Optional

list of xp values; requires a
domain

[-info]

Optional

list as for ’array set’; requires a
domain

[-group]

Optional

list of related domains, or list of
groups

[-equal]

Optional

list of domains with same
frequency; requires a domain

[-sdc]

Optional

return list of sdc commands

clock relation

clock relation

<

domain1

> <

domain2

>

[-default] [-group] [-sdc]

Return relation between clocks. For related clocks the return is a list with 5 values: the word ”related”
followed by T1 T2 e1 e2. T is the abstract period: T1/T2 = period1/period2. e is an abstract offset (in the

307

http://www.achronix.com

UG001 Rev. 5.0 - 5th December 2012

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