ZCU102 Evaluation Board User Guide www.xilinx.com 36
UG1182 (v1.2) March 20, 2017
Chapter 3: Board Component Descriptions
The USB3320 ULPI U116 transceiver circuit (see Figure 3-4) has a Micrel MIC2544 high-side
programmable current limit switch (U121). This switch has an open-drain output fault flag
on pin 2, which will turn on LED DS51 if overcurrent or thermal shutdown conditions are
detected. DS51 is located in the U116 circuit area near push-button SW2 (Figure 2-1, callout
5).
X-Ref Target - Figure 3-4
Figure 3-4: ULPI U116 Transceiver Circuit
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