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AR# 15068

7.1i XST - Inferring block RAM

描述

General Description:

XST does not properly infer block RAM under the following conditions:

- When a 512x16 block RAM described as a RAMB16_S36 is inferred instead of RAMB18_S18.

- When the output port width is greater than the RAM word width.

解决方案

For more information on inferring RAM, see the Xilinx Synthesis Technology (XST) User Guide in the software manuals, available at:

http://www.xilinx.com/support/software_manuals.htm

The ISE Language Templates also have examples on how to infer RAM

AR# 15068
日期 12/15/2012
状态 Active
Type 综合文章
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