2.1. Design Example Block Diagram
Figure 2. GTS JESD204C Design Example High-level Block Diagram
The design example consists of the following modules:
- Platform Designer system
- GTS JESD204C Intel® FPGA IP
- JTAG to Avalon Master bridge
- Parallel I/O (PIO) controller
- Serial Port Interface (SPI)—master module
- IOPLL
- SYSREF generator
- Example Design (ED) Control CSR
- Reset sequencers
- GTS Reset Sequencer Intel® FPGA IP
- Pattern generator
- Pattern checker
Components | Description |
---|---|
Platform Designer system | The Platform Designer system instantiates the GTS JESD204C IP data path and supporting peripherals. |
GTS JESD204C Intel® FPGA IP | This Platform Designer subsystem contains the TX and RX GTS JESD204C IPs instantiated together with the duplex PHY. |
JTAG to Avalon Master bridge | This bridge provides system console host access to the memory-mapped IP in the design through the JTAG interface. |
Parallel I/O (PIO) controller | This controller provides a memory-mapped interface for sampling and driving general purpose I/O ports. |
SPI master | This module handles the serial transfer of configuration data to the SPI interface on the converter end. |
SYSREF generator | The SYSREF generator uses the link clock as a reference clock and generates SYSREF pulses for the GTS JESD204C IP.
Note: This design example uses the SYSREF generator to demonstrate the duplex GTS JESD204C IP link initialization. In the GTS JESD204C subclass 1 system level application, you must generate the SYSREF from the same source as the device clock.
|
IOPLL | This design example uses an IOPLL to generate a user clock for transmitting data into the GTS JESD204C IP. |
ED Control CSR | This module provides SYSREF detection control and status, and test pattern control and status. |
GTS Reset Sequencer Intel® FPGA IP | This module is instantiated according the number of lanes selected which ensures proper transceiver operation. |
Reset sequencers | This design example consists of 2 reset sequencers:
|
Pattern generator | The pattern generator generates a PRBS or ramp pattern. |
Pattern checker | The pattern checker verifies the PRBS or ramp pattern received, and flags an error when it finds a mismatch of data sample. |