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

24.5.2. Register Descriptions

Table 299.  ECC Error Status FIFO Level Register (ECC_STATUS_FIFO_LVL)
Bit Fields Access Modified WriteValues Default Value Description
3140 eccfifo_overflow read-write writeToClear 0x0 ECC_STATUS_FIFO overflow error status. The maximum depth of ECC_STATUS_FIFO is 512.
Note: Writing to this field to clears the content of the field to 0.
[30:9] Reserved N/A 0x0 Reserved
[8:0] eccfifo_lvl read-only 0x0 Shows the current number of words stored in ECC_STATUS_FIFO.
Note:
When ECC_STATUS_FIFO is full, it will roll over to 0. The maximum depth of ECC_STATUS_FIFO is 512.
Table 300.  RAM address of ECC error status FIFO (ECC_ERR_ADDR_FIFO)The depth of ECC_ERR_ADDR_FIFO is 512.
Bit Fields Access Default Value Description
[31:26] Reserved N/A 0x0 Reserved
[25:0] ecc_err_addr read-only 0x0 The ECC_ERR_ADDR_FIFO holds the RAM’s read address(word-addressing) that has an ECC status of correctable or uncorrectable error.
Table 301.  ECC Error Status FIFO (ECC_STATUS_FIFO)The ECC_STATUS_FIFO holds the ECC status of correctable or uncorrectable error of the output data of memory.
Bit Fields Access Default Value Description
31:17 Reserved read-only 0x0 Reserved
16 RAM0_uncorrectable_ecc_err Holds the uncorrectable ECC error status of RAM 0
15:1 Reserved Reserved
0 RAM0_correctable_ecc_err Holds the correctable ECC error status of RAM 0
Table 302.  Control Register (CONTROL)
Bit Fields Access Default Value Description
[31:3] Reserved N/A 0x0 Reserved
241 eccencbypass_ena read-write 0x0 ECC Encoder Bypass feature is disabled by default. Write 1 to enable ECC Encoder Bypass feature.
1 pop_eccfifo read-write 0x0

Enabled to pop the next data from ECC_ERR_ADDR_FIFO and ECC_STATUS_FIFO.

This field will automatically reset to 0 after one data is pop out from the FIFO.

0 csr_soft_rst read-write 0x0

Enable soft reset to reset eccfifo_overflow status, ECC_ERR_ADDR_FIFO, ECC_STATUS_FIFO and parity_RAM0 registers.

This field will automatically reset to 0 after 8 clock cycles.

Table 303.  ECC parity input to RAM 0 register (PARITY_RAM0)Only applicable if parameter Enable ECC Encoder Bypass is enabled
Bit Fields Access Default Value Description
[31:8] Reserved N/A 0x0 Reserved
[7:0] parity_RAM0 read-write 0x0 8-bit parity input to RAM 0 when ECC Encoder Bypass is enabled.
40 Sticky bits
41 Only applicable if parameter Enable ECC Encoder Bypass is enabled