Interlaken (2nd Generation) Intel® FPGA IP User Guide

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ID 683396
Date 10/04/2021
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. Getting Started 3. Parameter Settings 4. Functional Description 5. Interface Signals 6. Register Map 7. Test Features 8. Interlaken (2nd Generation) Intel® FPGA IP User Guide Archives 9. Document Revision History for Interlaken (2nd Generation) Intel® FPGA IP User Guide
1. Introduction x
1.1. Features 1.2. Device Family Support 1.3. Performance and Resource Utilization 1.4. Flexible Lanes Support 1.5. Round-trip Latency 1.6. Release Information
2. Getting Started x
2.1. Installing and Licensing Intel® FPGA IP Cores 2.2. Generated File Structure 2.3. Specifying the IP Core Parameters and Options 2.4. Simulating the IP Core 2.5. Compiling the Full Design and Programming the FPGA 2.6. Integrating Your IP Core in Your Design
2.1. Installing and Licensing Intel® FPGA IP Cores x
2.1.1. Intel® FPGA IP Evaluation Mode
2.6. Integrating Your IP Core in Your Design x
2.6.1. Pin Assignment 2.6.2. Adding the External PLL 2.6.3. PMA Adaptation Flow
3. Parameter Settings x
3.1. Main Parameters 3.2. PMA Adaptation Parameters
4. Functional Description x
4.1. Interfaces 4.2. IP Clocks 4.3. High Level Data Path Flow for Interlaken Mode 4.4. High Level Data Path Flow for Interlaken Look-aside Mode 4.5. Modes of Operation 4.6. Performance 4.7. IP Core Reset 4.8. M20K ECC Support 4.9. Out-of-Band Flow Control
4.3. High Level Data Path Flow for Interlaken Mode x
4.3.1. Interlaken TX Path 4.3.2. Interlaken RX Path 4.3.3. Unused Transceiver Channels
4.3.1. Interlaken TX Path x
4.3.1.1. Transmit Path Blocks 4.3.1.2. In-Band Calendar Bits on Transmit Side
4.3.2. Interlaken RX Path x
4.3.2.1. Receive Path Blocks 4.3.2.2. In-Band Calendar Bits on Receive Side 4.3.2.3. RX Errored Packet Handling
4.3.2.3. RX Errored Packet Handling x
4.3.2.3.1. Example With Errors and In-Band Calendar Bits
4.4. High Level Data Path Flow for Interlaken Look-aside Mode x
4.4.1. Interlaken Look-aside TX Path 4.4.2. Interlaken Look-aside RX Path
4.4.1. Interlaken Look-aside TX Path x
4.4.1.1. Transmit Path Blocks
4.4.2. Interlaken Look-aside RX Path x
4.4.2.1. Receive Path Blocks 4.4.2.2. RX Error Handling
4.5. Modes of Operation x
4.5.1. Interleaved and Packet Modes 4.5.2. Interlaken Mode 4.5.3. Interlaken Look-aside Mode 4.5.4. Multi-Segment Mode
4.5.2. Interlaken Mode x
4.5.2.1. Transmit User Data Interface Examples 4.5.2.2. Receive User Data Interface Example
4.5.3. Interlaken Look-aside Mode x
4.5.3.1. Transmit User Data Interface Example 4.5.3.2. Receive User Data Interface Examples
4.5.4. Multi-Segment Mode x
4.5.4.1. Multi-Segment Interface Example
5. Interface Signals x
5.1. Clock and Reset Interface Signals 5.2. Transmit User Interface Signals 5.3. Receive User Interface Signals 5.4. Management Interface Signals 5.5. Reconfiguration Interface Signals 5.6. Interlaken Link and Miscellaneous Signals 5.7. External PLL Interface Signals
7. Test Features x
7.1. Internal Serial Loopback Mode 7.2. External Loopback Mode
1. Introduction
2. Getting Started
3. Parameter Settings
4. Functional Description
5. Interface Signals
6. Register Map
7. Test Features
8. Interlaken (2nd Generation) Intel® FPGA IP User Guide Archives
9. Document Revision History for Interlaken (2nd Generation) Intel® FPGA IP User Guide

4.1. Interfaces

The Interlaken IP supports the following interfaces:

User Data Transfer Interface

The user data transfer interface, also known as application interface, provides up to 256 logical channels of communication to and from the Interlaken link. This interface is similar to the Avalon® Streaming ( Avalon® -ST) interface which supports data bursts or packets, which are carried in the Interlaken meta frame payload.

Interlaken Interface

The Interlaken interface complies with the Interlaken Protocol Specification, Revision 1.2. It is the high-speed transceiver interface to an Interlaken link.

Interlaken Look-aside Interface

The Interlaken Look-aside interface complies with the Interlaken Look-Aside Protocol Specification, Revision 1.1. It is the high-speed transceiver interface to an Interlaken link.

Management Interface

The management interface provides access to the Interlaken IP internal status and control registers. This interface does not provide access to the hard PCS registers on the device. This interface complies with the Avalon® Memory-Mapped ( Avalon® -MM) specification defined in the Avalon Interface Specifications.

Transceiver Control Interfaces

The Interlaken IP provides several interfaces to control the transceiver. The transceiver control interfaces in your Interlaken IP variation depend on the device family the variation targets. The Interlaken IP supports the following transceiver control interfaces:
  • External PLL Interface

    The Interlaken IP variations that target an Intel® Stratix® 10 L-tile or H-tile device require an external transceiver PLL to function correctly in hardware. The Interlaken IP variations that target an Intel® Stratix® 10 or Intel® Agilex™ E-tile device include transceiver PLLs and do not require an external PLL. The E-tile PAM4 mode variations require an additional mac_clkin input clock generated by a PLL. This PLL must use the same reference clock source that drives the pll_ref_clk.

  • Transceiver Reconfiguration Interface

    The  transceiver reconfiguration interface provides access to the registers in the embedded Native PHY IP. This interface provides direct access to the hard PCS registers on the device. This interface complies with the
                   Avalon®
                    -MM specification defined in the Avalon Interface Specifications.

Figure 6.  Interlaken (2nd Generation) Intel® FPGA IP High Level System Overview
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