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# 31768

XtremeDSP Spartan-3A DSP Starter Kit 1800A - What are the MB_FB_CLK and CLK_FB_MB pins used for in the XtremeDSP Spartan-3A DSP Starter Kit 1800A board?

Description

What are the MB_FB_CLK and CLK_FB_MB pins used for in the XtremeDSP Spartan-3A DSP Starter Kit 1800A board?

These pins are listed in UG454 and the schematic of XtremeDSP Spartan-3A DSP Starter Kit 1800A.

Solution

The MB_FB_CLK and CLK_FB_MB are not used by any software or IP and can be safely ignored. However, when building a memory interface to use with the DDR2 SDRAM, you will need to use the RST_DSQ_DIV pin.
AR# 31768
Date Created 11/11/2008
Last Updated 12/15/2012
Status Active
Type General Article