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AR# 1279

JTAG - Does data appear on TDO and DOUT during JTAG configuration of 4k/5k/Spartan families?

Description

Urgency: Standard

General Description:

Can you see the preamble on the DOUT pin or TDO pin during

a Boundary Scan configuration of the 4k/5k/Spartan families?

Solution

When configuring through the JTAG TAP, the preamble will appear

on the DOUT pin. At the same time, the preamble appears on the TDO

pin.

AR# 1279
Date Created 08/21/2007
Last Updated 12/15/2012
Status Active
Type General Article