Embedded Peripherals IP User Guide

ID 683130
Date 2/09/2023
Public

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Document Table of Contents
1. Introduction 2. Avalon® -ST Multi-Channel Shared Memory FIFO Core 3. Avalon® -ST Single-Clock and Dual-Clock FIFO Cores 4. Avalon® -ST Serial Peripheral Interface Core 5. SPI Core 6. SPI Agent/JTAG to Avalon® Host Bridge Cores 7. Intel eSPI Agent Core 8. eSPI to LPC Bridge Core 9. Ethernet MDIO Core 10. Intel FPGA 16550 Compatible UART Core 11. UART Core 12. JTAG UART Core 13. Intel FPGA Avalon® Mailbox Core 14. Intel FPGA Avalon® Mutex Core 15. Intel FPGA Avalon® I2C (Host) Core 16. Intel FPGA I2C Agent to Avalon® -MM Host Bridge Core 17. Intel FPGA Avalon® Compact Flash Core 18. EPCS/EPCQA Serial Flash Controller Core 19. Intel FPGA Serial Flash Controller Core 20. Intel FPGA Serial Flash Controller II Core 21. Intel FPGA Generic QUAD SPI Controller Core 22. Intel FPGA Generic QUAD SPI Controller II Core 23. Interval Timer Core 24. Intel FPGA Avalon FIFO Memory Core 25. On-Chip Memory (RAM and ROM) Intel FPGA IP 26. On-Chip Memory II (RAM or ROM) Intel FPGA IP 27. Optrex 16207 LCD Controller Core 28. PIO Core 29. PLL Cores 30. DMA Controller Core 31. Modular Scatter-Gather DMA Core 32. Scatter-Gather DMA Controller Core 33. SDRAM Controller Core 34. Tri-State SDRAM Core 35. Video Sync Generator and Pixel Converter Cores 36. Intel FPGA Interrupt Latency Counter Core 37. Performance Counter Unit Core 38. Vectored Interrupt Controller Core 39. Avalon® -ST Data Pattern Generator and Checker Cores 40. Avalon® -ST Test Pattern Generator and Checker Cores 41. System ID Peripheral Core 42. Avalon® Packets to Transactions Converter Core 43. Avalon® -ST Multiplexer and Demultiplexer Cores 44. Avalon® -ST Bytes to Packets and Packets to Bytes Converter Cores 45. Avalon® -ST Delay Core 46. Avalon® -ST Round Robin Scheduler Core 47. Avalon® -ST Splitter Core 48. Avalon® -MM DDR Memory Half Rate Bridge Core 49. Intel FPGA GMII to RGMII Converter Core 50. Intel FPGA MII to RMII Converter Core 51. Intel FPGA HPS GMII to TSE 1000BASE-X/SGMII PCS Bridge Core 52. Intel FPGA HPS EMAC to Multi-rate PHY GMII Adapter Core 53. Intel FPGA MSI to GIC Generator Core 54. Cache Coherency Translator Intel® FPGA IP 55. Lightweight UART Core

31.4. mSGDMA Descriptors

The descriptor agent port is 128-bits for standard descriptors and 256-bits for extended descriptors. The tables below show acceptable standard and extended descriptor formats.

Table 308.  Standard Descriptor Format
    Byte Lanes
Offset Access 3 2 1 0
0x0 Write Read Address[31:0]
0x4 Write Write Address[31:0]
0x8 Write Length[31:0]
0xC Write Control[31:0]
Table 309.  Extended Descriptor Format
    Byte Lanes
Offset Access 3 2 1 0
0x0 Write Read Address[31:0]
0x4 Write Write Address[31:0]
0x8 Write Length[31:0]
0xC Write Write Burst Count[7:0] Read Burst Count [7:0] Sequence Number[15:0]
0x10 Write Write Stride[15:0] Read Stride[15:0]
0x14 Write Read Address[63:32]
0x18 Write Write Address[63:32]
0x1C Write Control[31:0]

All descriptor fields are aligned on byte boundaries and span multiple bytes when necessary. You can access each byte lane of the descriptor agent port independently of the others, allowing you to populate the descriptor using any access size.

Note: The location of the control field is dependent on the descriptor format you used. The last bit of the control field commits the descriptor to the dispatcher buffer when it is asserted. As a result, the control field is located at the end of a descriptor. This allows you to write the descriptor sequentially to the dispatcher block.