The APB is part of the AMBA 3 protocol family. It provides a low-cost interface that is optimized for minimal power consumption and reduced interface complexity. The APB interfaces to any peripherals that are low-bandwidth and do not require the high

这是Xilinx AXI定时器的说明手册，对于进行FPGA开发的工程师有参考价值 -The LogiCORE IP AXI Timer/Counter is a 32/ 64-bit timer module that interfaces to the AXI4-Lite interface.