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AR# 29738

CPLD CoolRunner-II, CoolRunner XPLA3 - What is the maximum JTAG frequency?

Description

What is the maximum frequency the JTAG interface can be run at in a CoolRunner-II or a CoolRunner XPLA3?

Solution

This information is provided in the BSDL file under the TAP_SCAN_CLOCK attribute.

For the CoolRunner-II, it is 33 MHz.

For the CoolRunner XPLA3, it is 10 MHz.

JTAG TAP Timing Parameters for CoolRunner-II

JTAG TAP Timing Parameters for CoolRunner-II
JTAG TAP Timing Parameters for CoolRunner-II

AR# 29738
Date Created 11/03/2007
Last Updated 12/15/2012
Status Active
Type General Article