Embedded Peripherals IP User Guide

ID 683130
Date 8/11/2025
Public
Document Table of Contents
1. Introduction 2. Avalon® -ST Single-Clock and Dual-Clock FIFO Cores 3. Avalon® -ST Serial Peripheral Interface Core 4. SPI Core 5. SPI Agent/JTAG to Avalon® Host Bridge Cores 6. Intel eSPI Agent Core 7. eSPI to LPC Bridge Core 8. Ethernet MDIO Core 9. Intel FPGA 16550 Compatible UART Core 10. 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. Intel FPGA Avalon® Compact Flash Core 17. EPCS/EPCQA Serial Flash Controller Core 18. Intel FPGA Serial Flash Controller Core 19. Intel FPGA Serial Flash Controller II Core 20. Intel FPGA Generic QUAD SPI Controller Core 21. Intel FPGA Generic QUAD SPI Controller II Core 22. Interval Timer Core 23. Intel FPGA Avalon FIFO Memory Core 24. On-Chip Memory (RAM and ROM) Intel FPGA IP 25. On-Chip Memory II (RAM or ROM) Intel FPGA IP 26. Optrex 16207 LCD Controller Core 27. PIO Core 28. PLL Cores 29. DMA Controller Core 30. Modular Scatter-Gather DMA Core 31. Scatter-Gather DMA Controller Core 32. SDRAM Controller Core 33. Tri-State SDRAM Core 34. Video Sync Generator and Pixel Converter Cores 35. Intel FPGA Interrupt Latency Counter Core 36. Performance Counter Unit Core 37. Vectored Interrupt Controller Core 38. Avalon® -ST Data Pattern Generator and Checker Cores 39. Avalon® -ST Test Pattern Generator and Checker Cores 40. System ID Peripheral Core 41. Avalon® Packets to Transactions Converter Core 42. Avalon® -ST Multiplexer and Demultiplexer Cores 43. Avalon® -ST Bytes to Packets and Packets to Bytes Converter IP 44. Avalon® -ST Delay Core 45. Avalon® -ST Round Robin Scheduler Core 46. Avalon® -ST Splitter Core 47. Avalon® -MM DDR Memory Half Rate Bridge Core 48. Intel FPGA GMII to RGMII Converter Core 49. HPS GMII to RGMII Adapter Intel® FPGA IP 50. Intel FPGA MII to RMII Converter Core 51. HPS GMII to TSE 1000BASE-X/SGMII PCS Bridge Core Intel® FPGA IP 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. Altera ACE5-Lite Cache Coherency Translator 56. Lightweight UART Core

17.6. Driver API

Table 153.  alt_epcs_flash_get_info
Prototype: alt_epcs_flash_get_info(alt_flash_fd* fd, flash_region** info, int* number_of_regions)
Include: <altera_avalon_epcs_flash_controller.h>
Parameter:
  • fd – pointer to general flash device structure
  • info- pointer to the flash region
  • number_of_regions- pointer to the number of regions
Return: Return 0 if successful and otherwise return:
  • -ENOMEM for number of region more than maximum number of flash region
  • -EIO for possibly hardware problem
Description: Pass the table of erase blocks to the user.
Table 154.  alt_epcs_flash_erase_block
Prototype: alt_epcs_flash_erase_block(alt_flash_dev* flash_info, int block_offset)
Include: <altera_avalon_epcs_flash_controller.h>
Parameter:
  • flash_info – pointer to flash device structure
  • block_offset- byte-addressed offset, from start of flash of the sector to be erased
Return: Return 0 if successful.
Description: Erase the selected erase block
Table 155.  alt_epcs_flash_write_block
Prototype: alt_epcs_flash_write_block(alt_flash_dev* flash_info, int block_offset, int data_offset, const void* data, int length)
Include: <altera_avalon_epcs_flash_controller.h>
Parameter:
  • flash_info – pointer to flash device structure
  • block_offset- the base of the current erase block
  • data_offset – absolute address of the beginning of the write-destination
  • data – data to be written
  • length – size of writing
Return: Return 0 if successful.
Description: Write one block/sector of data to the flash. The length of the write cannot spill into the adjacent sector.
Table 156.  alt_epcs_flash_write
Prototype: alt_epcs_flash_write (alt_flash_dev* flash_info, int offset, const void* src_addr, int length)
Include: <altera_avalon_epcs_flash_controller.h>
Parameter:
  • flash_info – pointer to flash device structure
  • offset- byte offset (unaligned access) of write to flash memory
  • src_addr – source buffer
  • length – size of writing
Return: Return 0 if successful.
Description: Program the data into the flash at the selected address. This function automatically erases a block as needed.
Table 157.  alt_epcs_flash_read
Prototype: alt_epcs_flash_read(alt_flash_dev* flash_info, int offset, void* dest_addr, int length)
Include: <altera_avalon_epcs_flash_controller.h>
Parameter:
  • flash_info – pointer to flash device structure
  • offset- offset read from flash memory
  • dest_addr – destination buffer
  • length – size of writing
Return: Return 0 if successful.
Description: Read data from flash at the selected address.