Answers Database

JTAG/BOUNDARY-SCAN: TDO and DOUT during Configure through boundary scan of 4k/5k


Record #1279

Problem Title:
JTAG/BOUNDARY-SCAN: TDO and DOUT during Configure through boundary scan
of 4k/5k



Problem Description:
When configuring through the TAP, just like non-JTAG configuration, the
preamble will appear on the DOUT pin.  In addition, when the preamble
appears on the DOUT pin the preamble will also appear on the TDO pin
at the same time.



Solution 1:





End of Record #1279