Device Family: Intel® Arria® 10 GT, Intel® Arria® 10 GX, Intel® Arria® 10 SX

Type: Answers

Area: EMIF, Intellectual Property


IP Product: Altera Hybrid Memory Cube (HMC), Half Width, 8 transceiver channels/link, data rates up to 15G, 256-bit wide.

How do I configure my Micron Hybrid Memory Cube (HMC) Bus Functional Model (BFM) to operate in half-width mode (8 lanes)?

Description

To configure your HMC BFM to operate in half-width mode using your own testbench, follow the steps in the Workaround/Fix section.

Workaround/Fix

Set the following parameters within the hmc_cfg.sv module:

 

link_cfg.cfg_half_link_mode_tx = 1;

link_cfg.cfg_half_link_mode_rx = 1;

 

The Altera testbench generated as part of the example design from the Quartus® II software does not include these parameters for the full-width (16 lanes) configuration but does include them for the half-width (8 lanes) variant.