Clocks

Table 1. Clock Ports

Port	Direction	Description
io_systemClock	Input	Provides a 20 - 400 MHz clock for the SoC.
io_peripheralClock	Input	Provides a 20 - 200 MHz clock for the APB3 peripherals and AXI4 master.
io_memoryClock	Input	Provides a clock for the external memory bus. The frequency is user defined.