2. Support
  3. AR# 1603: CPLD XC9500/XL/XV - When can the XC9500 internal IOB pull-up be accessed?

AR# 1603

CPLD XC9500/XL/XV - When can the XC9500 internal IOB pull-up be accessed?

Description

General Description:

How do I use the pull-up in the IOB for XC9500/XL/XV devices?

Solution

In the XC9500/XL/XV IOBs, an internal pull-up becomes active during power-up, device configuration, and Intest only.

- For active I/O, these pull-ups cannot be accessed or activated during normal operation.

- For unused I/O, please see (Xilinx Solution 1536)

AR# 1603
Date 12/15/2012
Status Active
Type General Article