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

28.15.3.1. Data Write Master Interface (data_write_master)

The data write master interface is responsible for writing data to memory buffered by the data streaming interface. The data write master interface supports optional burst transactions. The data width, burst length, and memory alignment are configurable. Refer to Parameters to learn more about the configuration options.

Table 445.  Data Write Master Interface
Signal Name Direction Type Description
master_address [FIX_ADDRESS_WIDTH-1:0] Output Avalon® Memory-Mapped Host

Indicates write address of the destination.

Note:

The address width is configurable based on parameter FIX_ADDRESS_WIDTH only when parameter USE_FIX_ADDRESS_WIDTH is enabled.

If USE_FIX_ADDRESS_WIDTH = 0, the address width is automatically fixed to 32-bit width.

master_write Output Write request to the destination address.
master_byteenable [DATA_WIDTH/8-1:0] Output

Enable the byte lanes during write transfer to the destination address.

Note: Applicable for DATA_WIDTH is larger than 8.
master_burstcount [log2(GUI_MAX_BURST_COUNT):0] Output

Indicate the number of write transfers in each burst.

Note: Applicable only when parameter Burst Enable is enabled.
master_writedata [DATA_WIDTH-1:0] Output Data for the write transfer to the destination.
master_response [1:0] Input

Response status for the write transaction to the destination.

Note: Applicable only when parameter Enable Write Response is enabled.
master_writeresponsevalid Input

When asserted, the value on the response signal is a valid write response.

Note: Applicable only when parameter Enable Write Response is enabled
master_waitrequest Input An agent asserts waitrequest when unable to respond to the write request.