Answers Database

XC3000: How to specify FGM mode in a schematic design using a CLBMAP


Record #810

Product Family:  Hardware

Product Line:  3000

Problem Title:
XC3000: How to specify FGM mode in a schematic design using a CLBMAP


Problem Description:
Keywords: FGM, schematic, CLB, XC3000

Urgency: Standard

Description
If you want to use FGM mode in a 3k design but don't want to
use a CLB primitive library symbol. FGM mode is used when there
is 'P' attribute on the E-pin  of a CLB MAP


Solution 1:

(1) Use a CLBMAP in schematic.

(2) E-pin of the CLBMAP must be a net going to the
select line of a mux

(3) Place a 'P' attribute on the CLBMAP E-pin.



End of Record #810