AR# 11945

描述

解决方案

For the quiescent ICCAUX, please refer to the Virtex-II/Virtex-II Pro Data Sheet at:
http://www.xilinx.com/support/documentation/index.htm

Also refer(Xilinx Answer 11182)to know where VCCAUX power can be used inVirtex-II/Virtex-IIdevice families.

Additionally, each DCM at maximum frequency consumes ~30 mA max (this is the worst case, since not all DCMs are running at 420 MHz). Values of up to 300 mA have been measured in large parts. For Virtex-II and Virtex-II Pro devices, budget your designs with a 600 mA capacity in mind.

NOTES:

1. Since VCCAUX is also used in the differential I/Os, the dynamic current is more than the quiescent current when I/Os are switching. The budget noted above includes differential I/O usage.
2. Quiescent current is characterized for the entire chip. VCCAUX is not divided into banks.
3. Differential inputs listed above include any input with a differential op-amp. This includes any inputs with a VREF requirement (GTL, HSTL, SSTL, AGP) and the differential I/O (LVDS, LVPECL, LDT).
4. Refer to (Xilinx Answer 18493) for more information on VCCAUX support in XPower.

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