APB3 Interface

The following table shows the ports for the APB3 user slave peripheral. Refer to the AMBA APB Protocol Specification for APB port descriptions and handshake information.

Table 1. APB3 PortsWhere n is 0, 1, 2, 3, or 4

Port	Direction	Description
io_apbSlave_n_PADDR[15:0]	Output	User address.
io_apbSlave_n_PSEL	Output	User select.
io_apbSlave_n_PENABLE	Output	User enable.
io_apbSlave_n_PREADY	Input	User ready.
io_apbSlave_n_PWRITE	Output	User direction.
io_apbSlave_n_PWDATA[31:0]	Output	User write data.
io_apbSlave_n_PRDATA[31:0]	Input	User read data.
io_apbSlave_n_PSLVERROR	Input	User transfer failure.