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AR# 7649

CPLD CoolRunner - Which pins on CoolRunner devices require termination?

Description

What pins on CoolRunner devices require termination?

Solution

Terminate the following with 10k pull-up resistors:

1. All unused dedicated input pins (in0..in3).

2. Always terminate JTAG signals.

3. Unused I/O on XPLA1 3032, 5032 and 5032C macrocell devices.

The software will automatically terminate unused I/O signals on all other devices.

AR# 7649
Date Created 08/21/2007
Last Updated 12/15/2012
Status Active
Type General Article