The following table describes the global signals for the AXI Chip2Chip core.
| Name | Direction | Description |
|---|---|---|
| s_aclk | Input |
Global Slave Interface Clock. For Independent Clock mode, all signals on the AXI Slave interface of an AXI Chip2Chip Master core are synchronous to s_aclk. For Common Clock mode, all AXI Chip2Chip Master core operations are synchronous to s_aclk. |
| axi_c2c_phy_clk | Input |
Physical Interface Clock. The |
| idelay_ref_clk | Input |
SelectIOInterface I/O Reference Clock. This signal is applicable only when the SelectIOinterface is selected as the FPGA interfacing option. The applicable frequency for idelay_ref_clk is 200 MHz or 300 MHz (±10 MHz). |
| s_aresetn | Input |
Global Reset. This signal is active-Low and asserted asynchronously. The de-assertion of this signal is synchronized with the clock domain. All applicable clock inputs to the AXI Chip2Chip Master core must be stable when s_aresetn input is deasserted. |
| m_aclk | Input |
Global Master Interface Clock (Independent Clock). The m_aclk signal is an input when the Independent Clock mode of operation is selected for the core. Note: In Common Clock mode, the m_aclk input has to be connected to m_aclk_out driven by the AXI Chip2Chip Slave core. |
| m_aclk_out | Output |
Global Master Interface Clock (Common Clock). The m_aclk_out signal is output when the Common Clock Mode of operation is selected for the core. |
| m_aresetn | Input |
Global Reset. This signal is active-Low and asserted asynchronously. The de-assertion of this signal is synchronized with the clock domain. All applicable clock inputs to the AXI Chip2Chip Slave core must be stable when m_aresetn input is deasserted. |
| Optional AXI4-Lite Signals | ||
| m_axi_lite_aclk | Input |
Master Interface AXI4-Lite Clock. Applicable only when Slave Mode of AXI4-Lite is selected. All signals are sampled on the rising edge of this clock. |
| s_axi_lite_aclk | Input |
Slave Interface AXI4-Lite Clock. Applicable only when Master Mode of AXI4-Lite is selected. All signals are sampled on the rising edge of this clock. |