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

33.5.6. Board Support Package

The BSP you generate for your Nios II system provides access to the hardware in your system, including the VIC. The VIC driver includes scripts that the BSP generator calls to get default interrupt settings and to validate settings during BSP generation. The Nios® II BSP Editor provides a mechanism to edit these settings and generate a BSP for your Platform Designer design.

The generator produces a vector table file for each VIC in the system, named altera_<name>_vector_tbl.S. The vector table's source path is added to the BSP Makefile for compilation along with other VIC driver source code. Its contents are based on the BSP settings for each VIC's interrupt ports.

The VIC does not support runtime stack checking feature (hal.enable_runtime_stack_checking) in the BSP setting.

VIC BSP Settings

The VIC driver scripts provide settings to the BSP. The number and naming of these settings depends on your hardware system's configuration, specifically, the number of optional shadow register sets in the Nios® II processor, the number of VIC controllers in the system, and the number of interrupt ports each VIC has.

Certain settings apply to all VIC instances in the system, while others apply to a specific VIC instance. Settings that apply to each interrupt port apply only to the specified interrupt port number on that VIC instance.

The remainder of this section lists details and descriptions of each VIC BSP setting.