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

39.3. Interface Signals

Figure 169. Interface Signals
Signal Width Direction Description
Peripheral Clock Interface (peri_clock)
clk 1 Input Peripheral clock source
Peripheral Reset Interface (peri_reset)
rst_n 1 Input

Active-low peripheral asynchronous reset source.

This signal is asynchronously asserted and synchronously de-asserted. The synchronous de-assertion must be provided external to this core.

PLL Clock Interface (pll_derived_clock_in)
pll_125m_clk 1 Input 125MHz derived clock for adapter operation.
pll_25m_clk 1 Input 25MHz derived clock for adapter operation.
pll_2_5m_clk 1 Input 2.5MHz derived clock for adapter operation.
pll_locked 1 Input PLL locked for adapter operation.
Avalon MM Agent Interface for CSR Access (avalon_slave)
addr 1 Input Avalon® Memory-Mapped Interface address bus. The address bus is in the unit of Word addressing.
read 1 Input Avalon® Memory-Mapped Interface read control.
write 1 Input Avalon® Memory-Mapped Interface write control.
writedata 32 Input Avalon® Memory-Mapped Interface write data bus.
readdata 32 Output Avalon® Memory-Mapped Interface read data bus.
HPS EMAC GMII/MII Interface (hps_gmii)
mac_tx_clk_o 1 Input GMII/MII transmit clock from HPS.
mac_tx_clk_i 1 Output GMII/MII transmit clock to HPS.
mac_rx_clk 1 Output GMII/MII receive clock to HPS.
mac_rst_tx_n 1 Input GMII/MII transmit reset source from HPS. Active low reset.
mac_rst_rx_n 1 Input GMII/MII receive reset source from HPS. Active low reset.
mac_txd 8 Input GMII/MII transmit data from HPS.
mac_txen 1 Input GMII/MII transmit enable from HPS.
mac_txer 1 Input GMII/MII transmit error from HPS.
mac_rxdv 1 Output GMII/MII receive data valid to HPS.
mac_rxer 1 Output GMII/MII receive data error to HPS.
mac_rxd 8 Output GMII/MII receive data to HPS.
mac_col 1 Output GMII/MII collision detect to HPS.
mac_crs 1 Output GMII/MII carrier sense to HPS.
mac_speed 2 Input MAC speed indication from HPS.
Multirate PHY GMII Clock Interface
phy_rx_clkout 1 Input Multirate PHY RX Clock Out.
phy_rx_clkena 1 Input Multirate PHY RX Clock Enable.
phy_tx_clkout 1 Input Multirate PHY TX Clock Out.
phy_tx_clkena 1 Input Multirate PHY TX Clock Enable.
Multirate PHY GMII Data Interface (16-bit)
gmii16b_rx_d 16 Input Multirate PHY GMII receive data.
gmii16b_rx_dv 2 Input Multirate PHY GMII receive data valid.
gmii16b_rx_err 2 Input Multirate PHY GMII receive data error.
gmii16b_tx_d 16 Output Multirate PHY GMII transmit data.
gmii16b_tx_en 2 Output Multirate PHY GMII transmit data enable.
gmii16b_tx_err 2 Output Multirate PHY GMII transmit data error.
Multirate PHY Speed Interface
phy_speed 3 Input Multirate PHY Operating Speed.