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

28.15.3.2. Data Sink Interface (data_sink)

The data sink interface is responsible for receiving data from the read host or any component that contains a streaming source port. This interface is in big endian mode (first-order symbol is in the most significant bits of the data interface). The interface includes support for packets and errors. Refer to Parameters to learn more about the configuration options

Table 446.  Data Sink Interface
Signal Name Direction Type Description
snk_ready Output Avalon® Streaming Sink Indicates that the mSGDMA write master IP can accept data from the source when ready is asserted high.
snk_valid Input Indicates that the data from the source is valid.
snk_data [DATA_WIDTH-1:0] Input Indicates the DMA data transfer from user’s Avalon® -ST streaming source to the host.
snk_empty [log2(DATA_WIDTH/8)-1:0] Input

Indicates the number of symbols (8 data bits per symbol) that are empty, i.e. invalid data.

Invalid data or empty cycle is only permitted at the end of the packet transfer.

Note: Applicable only when parameter Packet Support Enable is enabled and DATA_WIDTH is larger than 8.
snk_sop Input

Indicates the start of packet.

Note: Applicable only when parameter Packet Support Enable is enabled.
snk_eop Input

Indicates the end of packet.

Note: Applicable only when parameter Packet Support Enable is enabled.
snk_error [ERROR_WIDTH-1:0] Input

Indicates error signal from source.

Note: Applicable only when parameter Error Enable is enabled.