GTS JESD204C Intel® FPGA IP Design Example User Guide

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ID 813978
Date 7/12/2024
Public
Document Table of Contents
Document Table of Contents x
1. About the GTS JESD204C Intel® FPGA IP Design Example User Guide 2. GTS JESD204C Intel® FPGA IP Design Example Quick Start Guide 3. Detailed Description for the GTS JESD204C Design Example 4. Document Revision History for the GTS JESD204C Intel® FPGA IP Design Example User Guide
2. GTS JESD204C Intel® FPGA IP Design Example Quick Start Guide x
2.1. Design Example Block Diagram 2.2. Software Requirements 2.3. Generating the Design 2.4. Simulating the Design Example Testbench 2.5. Compiling the Design Example
2.3. Generating the Design x
2.3.1. Design Example Parameters 2.3.2. Directory Structure
3. Detailed Description for the GTS JESD204C Design Example x
3.1. System Components 3.2. GTS JESD204C Design Example Clock and Reset 3.3. GTS JESD204C Design Example Signals 3.4. GTS JESD204C Design Example Control Registers
3.1. System Components x
3.1.1. JTAG to Avalon® Master Bridge 3.1.2. Parallel I/O (PIO) Core 3.1.3. SPI Master 3.1.4. IOPLL 3.1.5. SYSREF Generator 3.1.6. Reset Sequencers 3.1.7. 3-Wire SPI 3.1.8. Pattern Generator and Checker 3.1.9. GTS JESD204C TX and RX IP
1. About the GTS JESD204C Intel® FPGA IP Design Example User Guide
2. GTS JESD204C Intel® FPGA IP Design Example Quick Start Guide
3. Detailed Description for the GTS JESD204C Design Example
4. Document Revision History for the GTS JESD204C Intel® FPGA IP Design Example User Guide

3.1.2. Parallel I/O (PIO) Core

The parallel input/output (PIO) core with Avalon® interface provides a memory-mapped interface between an Avalon® memory-mapped slave port and general purpose I/O ports. The I/O ports connect either to on-chip user logic, or to I/O pins that connect to devices external to the FPGA.

Figure 7. PIO Core with Input Ports, Output Ports, and IRQ SupportBy default, the Platform Designer component disables the Interrupt Service Line (IRQ).

The PIO I/O ports are assigned at the top level HDL file (io_status for input ports, io_control for output ports).

The table below describes the signal connectivity for the status and control I/O ports to the DIP switch and LED on the development kit.

Table 7.  PIO Core I/O Ports
Port Bit Signal
Out_port 0 USER_LED SPI programming done
31:1 Reserved
In_port 0 USER_DIP internal serial loopback enable

Off = 1

On = 0
1 USER_DIP FPGA-generated SYSREF enable

Off = 1

On = 0
31:2 Reserved.
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