Xilinx Platform Cable USB II - Page 25

Platform Cable USB II
DS593 (v1.2.1) March 17, 2011 www.xilinx.com
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X-Ref Target - Figure 26
Figure 26: TDO Sampling Example at 12 MHz (TDO Propagation Delay)
DS593_26_021408
Negative TCK transition at G1 causes target device to
change TDO state, which propagates to the cable at G2 in
less than ½ clock cycle in this 12-MHz example.