AR# 240: PROcapture: Do not use RAM16.1, RAM32.1, ROM16.1, and ROM32.1 components
AR# 240
PROcapture: Do not use RAM16.1, RAM32.1, ROM16.1, and ROM32.1 components
Description
To build the XC4000 RAM and ROM components in Viewlogic, the Xilinx libraries use Viewlogic created primitives. These primitives, needed for simulation, not for schematic entry, are:
RAM16.1 RAM32.1 ROM16.1 ROM32.1
In the pre-Unified libraries, the above components are located in the x4000 library. In the Unified libraries, they are located in the xbuiltin library.
解决方案
When specifying RAM or ROM components for an XC4K design, use any of the following components located in the x4000 and xc4000 libraries: