Embedded Peripherals IP User Guide

ID 683130
Date 10/24/2025
Public
Document Table of Contents
1. Introduction 2. Avalon® -ST Serial Peripheral Interface Core 3. SPI Core 4. SPI Agent/JTAG to Avalon® Host Bridge Cores 5. Intel eSPI Agent Core 6. eSPI to LPC Bridge Core 7. Ethernet MDIO Core 8. Intel FPGA 16550 Compatible UART Core 9. UART Core 10. Lightweight UART Core 11. JTAG UART Core 12. Intel FPGA Avalon® Mailbox Core 13. Intel FPGA Avalon® Mutex Core 14. Intel FPGA Avalon® I2C (Host) Core 15. Intel FPGA I2C Agent to Avalon® -MM Host Bridge Core 16. EPCS/EPCQA Serial Flash Controller Core 17. Intel FPGA Serial Flash Controller Core 18. Intel FPGA Serial Flash Controller II Core 19. Intel FPGA Generic QUAD SPI Controller Core 20. Intel FPGA Generic QUAD SPI Controller II Core 21. Interval Timer Core 22. Intel FPGA Avalon FIFO Memory Core 23. On-Chip Memory (RAM and ROM) Intel FPGA IP 24. On-Chip Memory II (RAM or ROM) Intel FPGA IP 25. PIO Core 26. PLL Cores 27. DMA Controller Core 28. Modular Scatter-Gather DMA Core 29. Scatter-Gather DMA Controller Core 30. Video Sync Generator and Pixel Converter Cores 31. Intel FPGA Interrupt Latency Counter Core 32. Performance Counter Unit Core 33. Vectored Interrupt Controller Core 34. System ID Peripheral Core 35. Intel FPGA GMII to RGMII Converter Core 36. HPS GMII to RGMII Adapter IP 37. Intel FPGA MII to RMII Converter Core 38. HPS GMII to TSE 1000BASE-X/SGMII PCS Bridge Core IP 39. Intel FPGA HPS EMAC to Multi-rate PHY GMII Adapter Core 40. Intel FPGA MSI to GIC Generator Core 41. Cache Coherency Translator IP 42. Altera ACE5-Lite Cache Coherency Translator

24.4.3. AXI-4 Lite Interface Signals

AXI-4 Lite Interface only allow non-secure, data access.
Table 294.  Interface Signals for AXI-4 Lite Subordinate Interface
Signal Name Width Direction Description
Clock Interface
clk_csr 1 Input Clock for AXI-4 Lite Agent domain only
Reset Interface
reset_csr 1 Input Reset for AXI-4 Lite Agent domain only
AXI-4 Lite Agent
csr_awaddr [4:0] Input Write Address.
csr_awvalid 1 Input Write Address Valid. Indicates that write address channel signals are valid
csr_awready 1 Output Write Address Ready. Indicates that a transfer on the write address channel can be accepted
csr_awprot [2:0] Input Access permissions for write accesses
csr_wdata [31:0] Input Write Data.
csr_wstrb [3:0] Input Write Data Strobes. Indicates which byte lanes hold valid data
csr_wvalid 1 Input Write Data Valid.
csr_wready 1 Output Write Data Ready.
csr_bresp [1:0] Output Write Response.
csr_bvalid 1 Output Write Response Valid.
csr_bready 1 Input Write Response Ready.
csr_araddr [4:0] Input Read Address.
csr_arvalid 1 Input Read Address Valid. Indicates that read address channel signals are valid
csr_arready 1 Output Read Address Ready. Indicates that a transfer on the read address channel can be accepted
csr_arprot [2:0] Input Access permissions for read accesses
csr_rdata [31:0] Output Read Data.
csr_rresp [1:0] Output Read Data Response.
csr_rvalid 1 Output Read Data Valid.
csr_rready 1 Input Read Data Ready.