AR# 11056

CPLD CoolRunner - What do the Tconfig and Tinit specifications mean?

Description

General Description:

What is the difference between the Tconfig and the Tinit specifications?

Solution

For XPLA3:

Tconfig is the maximum time it takes for a CoolRunner part to begin device

operation after a valid minimum Vcc has been reached.

Tinit is the maximum time it takes for a CoolRunner part to return to device

operation after a JTAG operation has been completed.

For XPLA1 (original and enhanced) families:

Tinit is the time from valid VCC until device operation.

Initialization time (listed under Programming Specifications) is the time it takes for

a CoolRunner part to return to device operation after a JTAG operation has been completed.

AR# 11056
Date 12/15/2012
Status Active
Type General Article