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# 40416

6 Series - Are these devices hot-swap compliant?

描述

Are 6 series devices (Virtex-6, Spartan-6 FPGA) hot-swap compliant?

解决方案

Virtex-6 FPGA
These devices are hot-swap compliant. However, there are certain power-sequencing requirements that must be met (see page7 of DS152, Virtex-6 data sheet: http://www.xilinx.com/support/documentation/data_sheets/ds152.pdf for details).
Virtex-6 has clamp diodes to VCCO, similar to Virtex-II Pro, Virtex-4, Virtex-5 FPGA,etc., which means that the currentthrough them shouldbe limited in case Vin is applied before VCCO. The maximum current through a pin is 10 mA, as stated in the data sheet.
XAPP251 (http://www.xilinx.com/support/documentation/application_notes/xapp251.pdf) applies to Virtex-6 devices. See this application note for more information on hot swapping.This application note applies to all devices with a clamp diode to VCCO / GND, including Virtex-6 FPGA.

Spartan-6 FPGA
The Spartan-6 is Hot-swap compliant as stated in the Spartan-6 Family Overview data sheet (DS160).These devices do not have clamp diodes to VCCO, so there are lessrestrictions. The Spartan-6 FPGA input voltage is independent of VCCO (see Table 1, page 1 of DS162, Spartan-6 data sheet for details: http://www.xilinx.com/support/documentation/data_sheets/ds162.pdf).
In Table 2, page 3, of the DC and Switching data sheet (DS162), you can see that you can safely apply a voltage up to 3.95V maximum to the I/O without destroying it.

Diodes are only available for PCI standards - If a Customer is using a PCI standard, then the diodes would exist and the hot-swap/hot-plug compatibility follows the usual rules: the current through the I/Os should be limitedand Vinshould beapplied before VCCO.

链接问答记录

相关答复记录

Answer Number 问答标题 问题版本 已解决问题的版本
51834 SelectIO Design Assistant - Reliability and over driving IOs. N/A N/A
AR# 40416
日期 10/16/2013
状态 Active
Type 综合文章
器件
  • Virtex-6 LXT
  • Virtex-6 SXT
  • Virtex-6 LX
  • More
  • Virtex-6 CXT
  • Virtex-6 HXT
  • Spartan-6 LX
  • Spartan-6 LXT
  • Less
的页面