24.1.2 Port List

Table 24-4. FDDR APB Slave Configuration Interface Port List
Port Name Direction Polarity Description
APB_S_PSEL In High Indicates APB slave select
APB_S_PENABLE In High Indicates APB enable
APB_S_PWRITE In High APB write-control signal. Indicates read when Low and write when High.
APB_S_PADDR [10:2] In Indicates APB address. Addresses are word-aligned.
APB_S_PWDATA [15:0] In Indicates APB write data
APB_S_PRDATA [15:0] Out Indicates APB read data
APB_S_PREADY Out Indicates APB PREADY signal and is used to extend an APB transfer.
APB_S_PSLVERR Out High Indicates a transfer failure
APB_S_PCLK In Indicates APB clock
APB_S_PRESET_N In Low Indicates APB active-low reset