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Ixiasoft
1.2.5.1.1.6. Nios Subsystem
Note: This module is only available in the Nios Control design example
The Nios subsystem enables an embedded software-based control flow for the design example. Using the Nios control flow, you can develop and compile embedded C code to control the behavior of the design example. The Nios subsystem is a Platform Designer system that instantiates the following peripherals:
- Nios II processor
- On-chip memory—provides both instruction and data memory space
- Timer—provides a general timer function for the software
- JTAG UART—serves as the main communications portal between the user and the Nios II processor via the terminal console in Nios II Software Build Tools for Eclipse tool
- Avalon-MM bridges—two Avalon-MM bridge modules;
- To interface to the JESD204B subsystem
- To interface to Platform Designer components (core PLL reconfiguration controller, ATX PLL dynamic reconfiguration interface and SPI master module) in the top level Platform Designer project.
- Parallel I/O (PIO)—provides general input/output (I/O) access from the Nios II processor to the HDL components in the FPGA. Refer to the Parallel I/O section for more details.
Nios Subsystem Address Map
Figure 14. Nios Subsystem Address Map