2. 技术支持
  3. AR# 5358: COREGEN, VHDL: Output still available from VHDL behavioral model for area-optimized multiplier when CE is deactivated
  4. AR# 53584: Spartan-6 - How long after loading a command on the ICAP can CE be deasserted?

AR# 53584

Spartan-6 - How long after loading a command on the ICAP can CE be deasserted?

描述

The ICAP control logic I use follows the User Guide recommendations, but the command loaded does not take effect.

What is the issue here? How long after loading a command on the ICAP can CE be deasserted?

解决方案

After loading a command on the ICAP interface the CE must be asserted for two clock cycles. If CE is deasserted within two clock cycles of the command, the command might not execute.
AR# 53584
日期 12/20/2012
状态 Active
Type 综合文章
器件