AHB2APB_DataSheet

The AHB2APB interfaces the AHB to the APB. It buffers address, control and data from the AHB, drives the APB peripherals and returns data and response signals to the AHB. It decodes the address using an internal address map to select the peripheral. The AHB2APB is designed to operate when the APB and AHB clocks have the same frequency and phase. In addition to supporting all basic requirements for AMBA compliance, the AHB2APB provides enhancements to the APB protocol. With AHB2APB, an APB peripheral can insert wait states by hol ding its pready signal low for the required number of cycles.