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AR# 52745

Virtex-4Q - Why do I see additional current draw when carrying out Readback operations?

描述

When carrying our readbackfor scrubbing operations on a Virtex-4Q device, I see that there is additional current draw on the Vccaux and Vccint supplies. What causes this current draw?

解决方案

Accessing configuration logic to carry out Readback operations enables internal buses and logic in the device which contribute to current drawn. This is expected behavior. The current drawn is not characterized but should make a negligible contribution to overall power consumption.
AR# 52745
日期 11/12/2012
状态 Active
Type 综合文章
器件
  • Virtex-4Q
的页面