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AR# 2362

M1.3 MAP: What do "Clock IOBs" mean in the MAP report ?

Description

Keywords: IOBs, BUFGS, BUFGP, BUFGLS, BUFGE, BUFFCLK

Urgency: Standard

Reference: 14616

General Description:

It may not be clear as to what resources the "Clocked IOBs"
line in the Map report file is referring to.

Solution

What the "Clock IOBs" are referring to are any of the
dedicated pins with direct access to global buffers:

XC3000A/L: ACLK, GCLK
XC4000/E/L: BUFGS or BUFGP
XC4000EX/XL: BUFGLS/BUFGE, BUFFCLK
AR# 2362
Date Created 06/09/1997
Last Updated 06/26/1999
Status Archive
Type General Article