Embedded Peripherals IP User Guide

ID 683130
Date 12/18/2024
Public
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. HPS GMII to RGMII Adapter Intel® FPGA IP 51. Intel FPGA MII to RMII Converter Core 52. HPS GMII to TSE 1000BASE-X/SGMII PCS Bridge Core Intel® FPGA IP 53. Intel FPGA HPS EMAC to Multi-rate PHY GMII Adapter Core 54. Intel FPGA MSI to GIC Generator Core 55. Cache Coherency Translator Intel® FPGA IP 56. Altera ACE5-Lite Cache Coherency Translator Intel® FPGA IP 57. Lightweight UART Core

48.5. Example System

The following example provides high-level steps showing how the Avalon® -MM DDR Memory Half-Rate Bridge core is connected in a system. This example assumes that you are familiar with the Platform Designer GUI.

  1. Add a Nios® II Processor to the system.
  2. Add a DDR2 SDRAM High-Performance Controller and configure it to full-rate mode.
  3. Add Avalon® -MM DDR Memory Half-Rate Bridge to the system.
  4. Configure the parameters of the Avalon® -MM DDR Memory Half-Rate Bridge based on the memory controller. For example, for a 32 MByte DDR memory controller in full rate mode with 8 DQ pins (see Figure 157), the parameters should be set as the following:
    • Data Width = 16

      For a memory controller that has 8 DQ pins, its local interface width is 16 bits. The local interface width and the data width must be the same, therefore data width is set to 16 bits.

    • Address Width = 25

    For a memory capacity of 32 MBytes, the byte address is 25 bits. Because the host address of the bridge is byte aligned, the address width is set to 25 bits.

  5. Connect altmemddr_auxhalf to the agent clock interface (clk_s1) of the Half-Rate Bridge.
  6. Connect altmemddr_sysclk to the host clock interface (clk_m1) of the Half-Rate Bridge.
  7. Remove all connections between Nios® II processor and the memory controller, if there are any.
  8. Connect the host interface (m1) of the Avalon® -MM DDR Memory Half-Rate Bridge to the memory controller agent interface.
  9. Connect the agent interface (s1) of the Avalon® -MM DDR Memory Half-Rate Bridge to the Nios® II processor data_master interface.
  10. Connect altmemddr_auxhalf to Nios® II processor clock interface.