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AR# 7575

XPLA Programmer - What should the ATE vector clock speed for TCK be?

Description

Keywords: XPLA, PC-ISP, programmer, ISP, ISC, JTAG, CoolRunner,
ATE, TCK, clock, speed, vectors

Urgency: Standard

General Description:
What clock speed should be used to run ATE vectors?

Solution

We generate our program and init pulses by requesting a delay that is based
upon a number of TCKs during programming. This value is set at an arbitrary
10,000 clock pulses (for at least a 10ms delay). Our devices require a 10 ms
program pulse; therefore, TCK generated by the ATE setup can not be faster
than 1 MHz.
AR# 7575
Date Created 09/15/1999
Last Updated 08/31/2001
Status Archive
Type General Article