UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 5921

9500 datasheet - What is the "block software selectable" option for pullup resistors?

Description

Keywords: 9500, datasheet, pullup

Urgency: Standard

General Description: The footnote in the datasheet reads:
"Pull-up resistors are used to prevent floating pins during
programming and other times. They are disabled during normal
operations. They may be enabled/disabled in block software
selectable."

So what is this block software selectable option?

解决方案

This is a misprint in the databook. There is no block selectable option
in the CPLD solution. This documentation error exists in version 3 and 4
of the 9500 datasheet.

AR# 5921
创建日期 03/16/1999
Last Updated 08/23/2002
状态 Archive
Type 综合文章