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

24.4.5. AXI Interface Timing Diagram

Figure 91. AXI Reset
Figure 92. AXI Write with Wrapping Burst
Figure 93. AXI Write with INCR Burst
Figure 94. AXI Write with Back Pressure (WVALID back pressure)
Figure 95. AXI Write with Back Pressure (BREADY Back Pressure)
Figure 96. AXI Read with Back Pressure (RREADY)
Figure 97. AXI Read
Table 297.  Transaction Channel Handshake Pairs
Transaction Transaction Channel Handshake Pair
Host to Agent Agent to Host
AXI Write Write address s1_awvalid 37 s1_awready
Write data s1_wvalid37 s1_wready
Write response s1_bready s1_bvalid 38
AXI Read Read address s1_arvalid37 s1_arready
Read data s1_rready s1_rvalid38
37 In the event of back pressure, the signal remains asserted until the agent asserts its counterpart.
38 In the event of back pressure, this signal remains asserted until the host asserts its counterpart.