AR# 39073

MIG Spartan-6 MCB - Does the MCB support 4 Gb memories?

描述

The "Supported Memory Configurations" in the Spartan-6 FPGA Memory Controller User Guide (UG388) indicates that 4 Gb DDR3 is supported, but on the CORE Generator interface, there is no 4 Gb memory part available.

Does the MCB support 4 Gb memories? What about stacked/dual-die memory devices?

解决方案

The Spartan-6 MCB supports 4 Gb monolithic memories. To interface with a 4 Gb SDRAM part, the Create Custom Part feature must be used. A 4Gb memory can be achieved with the address bits configured as either row:15, col:11, bank:3, or row:14, col:12, bank:3. However, the Spartan-6 MCB does not support dual-die or twin-die memories because the read capture circuit of the MCB does not support the stacked die.

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
37541 MIG Spartan-6 Memory Controller Block (MCB) Core - Data Widths N/A N/A
AR# 39073
日期 11/27/2013
状态 Active
Type 综合文章
器件
IP