PL Configuration Signals

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

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2.4 English

The PS_INIT_B and PS_PROG_B signals should be considered input/output during the LBIST operation. These pins should be connected as open drain with a 4.7k pull-up resistor to VCCO_PSIO [3] as described in the UltraScale Architecture PCB Design User Guide (UG583) [Ref 15]. Driving these signals can cause LBIST failures.