ML365 Virtex-II Pro QDR II SRAM Mem. Board
www.xilinx.com
11
UG066 (v1.0) June 29, 2004
1-800-255-7778
R
Chapter 1
Introduction
Overview
The ML365 Virtex-II Pro QDR II SRAM Memory Board provides a communications
platform between a Virtex-II Pro FPGA and high-speed, quad data-rate (QDR) memories
with operating speeds up to 200 MHz. The ML365 has three major functions:
•
Test and verify the interoperability of Virtex-II Pro devices with high-speed QDR II
SRAM memories
•
Serve as a development platform for Xilinx and its customers to use for building
memory interfaces
•
Provide a means by which Xilinx can demonstrate high-speed QDR II SRAM memory
interoperability
This document describes the functional blocks within the ML365. It also provides various
recommendations and requirements for usage of the board, including electrical
requirements, logic analyzer requirements, and signal integrity issues. Simulation results
using IBIS also are included.
shows a simplified block diagram of the ML365 memory interfaces.
Figure 1-1:
Simplified Block Diagram of Memory Board Interface
ug124_01_062204
QDR II SRAM
1M x 36
FBGA 165
4-Word Burst
QDR II SRAM
1M x 36
FBGA 165
4-Word Burst
Virtex-II Pro FPGA
XC2VP20FF1152-6
QDR II SRAM
1M x 36
FBGA 165
4-Word Burst
D
(36-bits)
Q
(36-bits)
Addr,
Ctrl
Q (36-bits)
D (36-bits)
K, K
C, C
CQ, CQ
Addr, Ctrl
Q (36-bits)
D (36-bits)
K, K
C, C
CQ, CQ
Addr, Ctrl
C,
C
K,
K
CQ,
CQ
Product Not Recommended for New Designs