1. About the GTS JESD204C Intel® FPGA IP Design Example User Guide
Updated for: |
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Intel® Quartus® Prime Design Suite 24.2 |
IP Version 3.0.0 |
This user guide provides the features, usage guidelines, and detailed description about the design examples for the GTS JESD204C Intel® FPGA IP using Agilex™ 5 devices.
Intended Audience
This document is intended for:
- Design architect to make IP selection during system level design planning phase
- Hardware designers when integrating the IP into their system level design
- Validation engineers during system level simulation and hardware validation phase
Related Documents
For other documents related to the JESD204C protocol, refer to the related information.
Acronyms and Glossary
Acronym | Expansion |
---|---|
LEMC | Local Extended Multiblock Clock |
FC | Frame clock rate |
ADC | Analog to Digital Converter |
DAC | Digital to Analog Converter |
DSP | Digital Signal Processor |
TX | Transmitter |
RX | Receiver |
DLL | Data link layer |
CSR | Control and status register |
CRU | Clock and Reset Unit |
ISR | Interrupt Service Routine |
FIFO | First-In-First-Out |
SERDES | Serializer Deserializer |
ECC | Error Correcting Code |
FEC | Forward Error Correction |
SERR | Single Error Detection (in ECC, correctable) |
DERR | Double Error Detection (in ECC, fatal) |
PRBS | Pseudorandom binary sequence |
MAC | Media Access Controller. MAC includes protocol sublayer, transport layer, and data link layer. |
PHY | Physical Layer. PHY typically includes the physical layer, SERDES, drivers, receivers and CDR. |
PCS | Physical Coding Sub-layer |
PMA | Physical Medium Attachment |
RBD | RX Buffer Delay |
UI | Unit Interval = duration of serial bit |
RBD count | RX Buffer Delay latest lane arrival |
RBD offset | RX Buffer Delay release opportunity |
SH | Sync header |
TL | Transport layer |
EMIB | Embedded Multi-die Interconnect Bridge |
Term | Description |
---|---|
Converter Device | ADC or DAC converter |
Logic Device | FPGA or ASIC |
Octet | A group of 8 bits, serving as input to 64/66 encoder and output from the decoder |
Nibble | A set of 4 bits which is the base working unit of JESD204C specifications |
Block | A 66-bit symbol generated by the 64/66 encoding scheme |
Link Clock | Link Clock = Lane Line Rate/66. |
Frame | A set of consecutive octets in which the position of each octet can be identified by reference to a frame alignment signal. |
Frame Clock | A system clock which runs at the frame's rate, that must be 1x and 2x link clock. |
Samples per frame clock | Samples per clock, the total samples in frame clock for the converter device. |
LEMC | Internal clock used to align the boundary of the extended multiblocks between lanes and into the external references (SYSREF or Subclass 1). |
Subclass 0 | No support for deterministic latency. Data should be immediately released upon lane to lane deskew on receiver. |
Subclass 1 | Deterministic latency using SYSREF. |
Multipoint Link | Inter-device links with 2 or more converter devices. |
64B/66B Encoding | Line code that maps 64-bit data to 66 bits to form a block. The base level data structure is a block that starts with 2-bit sync header. |
Term | Description |
---|---|
L | Number of lanes per converter device |
M | Number of converters per device |
F | Number of octets per frame on a single lane |
S | Number of samples transmitted per single converter per frame cycle |
N | Converter resolution |
N’ | Total number of bits per sample in the user data format |
CS | Number of control bits per conversion sample |
CF | Number of control words per frame clock period per link |
HD | High Density user data format |
E | Number of multiblocks in an extended multiblock |