High Bandwidth Memory (HBM2E) Interface Intel Agilex® 7 M-Series FPGA IP User Guide

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Date 4/21/2023
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Document Table of Contents
Document Table of Contents x
1. About the High Bandwidth Memory (HBM2E) Interface Intel Agilex® 7 FPGA IP User Guide 2. Introduction to High Bandwidth Memory 3. Intel Agilex® 7 M-Series HBM2E Architecture 4. Creating and Parameterizing the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP 5. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Interface 6. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Controller Performance 7. Document Revision History for High Bandwidth Memory (HBM2E) Interface Intel FPGA IP User Guide A. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Intel® Quartus® Prime Software Flow
1. About the High Bandwidth Memory (HBM2E) Interface Intel Agilex® 7 FPGA IP User Guide x
1.1. Release Information
2. Introduction to High Bandwidth Memory x
2.1. HBM2E in Intel Agilex® 7 M-Series Devices 2.2. HBM2E DRAM Structure 2.3. Intel Agilex® 7 HBM2E Features 2.4. Intel Agilex® 7 M-Series HBM2E Controller Features 2.5. Intel Agilex® 7 M-Series FPGA HBM2E IP Device Family Support
3. Intel Agilex® 7 M-Series HBM2E Architecture x
3.1. Intel Agilex® 7 M-Series HBM2E Introduction 3.2. Intel Agilex® 7 M-Series Hard Memory NoC Subsystem 3.3. Address Mapping of the HBM2E Targets 3.4. Intel Agilex® 7 M-Series UIB Architecture 3.5. Intel Agilex® 7 M-Series HBM2E Controller Architecture
3.5. Intel Agilex® 7 M-Series HBM2E Controller Architecture x
3.5.1. Intel Agilex® 7 M-Series HBM2E Controller Details
4. Creating and Parameterizing the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP x
4.1. Creating an Intel® Quartus® Prime Pro Edition Project for High Bandwidth Memory (HBM2E) Interface FPGA IP 4.2. Parameterizing the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP
4.2. Parameterizing the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP x
4.2.1. General Parameters for High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP 4.2.2. Example Design Parameters for High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP 4.2.3. Modifying Your Pin Assignments to Choose the Physical Location of the HBM2E Device
5. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Interface x
5.1. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP High Level Block Diagram 5.2. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Controller Interface Signals 5.3. User AXI Interface Timing 5.4. Platform Designer-Only Interface 5.5. User Accesses to the HBM2E Controller
5.2. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Controller Interface Signals x
5.2.1. Reset, Clock, and Calibration Status Signals 5.2.2. 'Do not connect' Signals 5.2.3. Asynchronous HBM2E Controller Signals 5.2.4. AXI4 Interface Signals 5.2.5. AXI4-Lite Interface
5.3. User AXI Interface Timing x
5.3.1. AXI Write Transaction AXI Write Address AXI Write Data Write Response Channel 5.3.2. AXI Read Transaction
5.5. User Accesses to the HBM2E Controller x
5.5.1. Initialization Control Register and Initialization Status Register 5.5.2. Thermal Status Register 5.5.3. ECC Error Counters Register 5.5.4. Error Login Registers
6. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Controller Performance x
6.1. High Bandwidth Memory (HBM2E) DRAM Bandwidth 6.2. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Efficiency 6.3. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Latency 6.4. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Timing
A. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Intel® Quartus® Prime Software Flow x
A.1. Initiators Placement Recommendations A.2. Simulating HBM2E User Designs
1. About the High Bandwidth Memory (HBM2E) Interface Intel Agilex® 7 FPGA IP User Guide
2. Introduction to High Bandwidth Memory
3. Intel Agilex® 7 M-Series HBM2E Architecture
4. Creating and Parameterizing the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP
5. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Interface
6. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Controller Performance
7. Document Revision History for High Bandwidth Memory (HBM2E) Interface Intel FPGA IP User Guide
A. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Intel® Quartus® Prime Software Flow

5.3.1. AXI Write Transaction

AXI Write Address

The user logic operates as an AXI master and should provide a valid write address and accompanying control signals on the AW channel and assert AWVALID to indicate that the address is valid. The master can assert the AWVALID signal only when it drives valid address and control information.

When the slave is ready to accept a Write command, it asserts the AWREADY signal. Transfer of the command happens when both AWVALID and AWREADY are asserted.

AWUSER, the user signal for auto precharge, must be presented at the same time as AWADDR.

AXI Write Data

During a write burst, the master asserts the WVALID signal only when it drives valid write data. Once asserted, WVALID must remain asserted until the rising clock edge after the slave asserts WREADY. The master must assert the WLAST signal while it is driving the final write transfer in the burst. The master must issue the write data in the same order in which the write addresses are issued. Write data transfer happens when both WVALID and WREADY are HIGH.

The following diagram illustrates a pseudo-BL8 Write transaction, which corresponds to a 32-byte-wide AXI transaction of burst length 2. The master asserts the Write address (WA0) in cycle T1 using transaction ID AWID0, the slave asserts the AWREADY when it is ready to accept write requests. The master asserts the Write data in clock cycle T3. Because the slave WREADY is already asserted, the write data is accepted starting cycle T3. The second data beat of the transaction is transferred in clock cycle T4.

Figure 17. AXI Write Transaction – Using Pseudo-BL8 Memory Write Transaction

Write Response Channel

The slave uses the Write Response channel to respond once it has accepted a write transaction. The slave can assert the BVALID signal only when it drives a valid write response. Once asserted, BVALID must remain asserted until the rising clock edge after the master asserts BREADY. The default state of BREADY can be high, but only if the master can always accept a write response in a single cycle.

The HBM controller returns a Write Response as soon as the command has been accepted, and before the accompanying write data has been committed to the HBM memory.

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