Common Interface Signals - 1.1 English

Video Scene Change Detection LogiCORE IP Product Guide (PG322)

Document ID
Release Date
1.1 English
The following table summarizes the signals which are either shared by or not part of the dedicated AXI4-Stream, memory mapped AXI4 data, or AXI4-Lite control interfaces.
Table 1. Common Interface Signals
Signal Name I/O Width Description
ap_clk I 1 Video core clock
ap_rst_n I 1 Video core active-Low reset
interrupt O 1 Interrupt Request Pin
The ap_clk and ap_rst_n signals are shared between the core, memory mapped AXI4 data interfaces, and the AXI4-Lite control interface.
The memory mapped AXI4 and AXI4-Lite interfaces must be synchronous to the core clock signal ap_clk. All memory mapped AXI4 interface input signals and AXI4-Lite control interface input signals are sampled on the rising edge of ap_clk.
The ap_rst_n pin is an active-Low, synchronous reset input pertaining to both AXI4-Lite and memory mapped AXI4 interfaces. When ap_rst_n is set to 0, the core resets at the next rising edge of ap_clk.
The interrupt status output bus can be integrated with an external interrupt controller that has independent interrupt enable/mask, interrupt clear, and interrupt status registers that allow interrupt aggregation to the system processor.