Visible to Intel only — GUID: sfo1410067739512
Ixiasoft
Visible to Intel only — GUID: sfo1410067739512
Ixiasoft
4.1.1. HPS External Reset Sources
The following table lists the reset sources external to the HPS. All signals are synchronous to the osc1_clk clock. The reset signals from the HPS to the FPGA fabric must be synchronized to your user logic clock domain.
Source |
Description |
---|---|
f2h_cold_rst_req_n | Cold reset request from FPGA fabric (active low) |
f2h_warm_rst_req_n | Warm reset request from FPGA fabric (active low) |
f2h_dbg_rst_req_n | Debug reset request from FPGA fabric (active low) |
h2f_cold_rst_n | Cold-only reset to FPGA fabric (active low) |
h2f_rst_n | Cold or warm reset to FPGA fabric (active low) |
h2f_dbg_rst_n | Debug reset (dbg_rst_n) to FPGA fabric (active low) |
load_csr | Cold-only reset from FPGA control block (CB) and scan manager |
nPOR | Power-on reset pin (active low) |
nRST | Warm reset pin (active low) |
nRST and nPOR are powered by the HPS reset and clock input pins power supply (VCCRSTCLK_HPS). For more information on VCCRSTCLK_HPS, refer to the Cyclone V Device Datasheet.