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Hybrid Memory Cube (HMC)

Specification Support

HMC Rev 1_1 specification is supported.

Key Features

Feature Name


Link retry



Allows multiple devices to be connected together for capacity

Half-width link


Link retraining


Higher bandwidths


Power state management


Warm reset


Lane polarity reversal


Clock recovery

Necessary for serial data reception


Each lane data is scrambled per Flit using the seed

Generation/reception of TS1

Necessary for identifying lane reversal and lane synchronization

CRC generation/checking

To check data integrity of packets

Transaction layer packets

Encoding/decoding packet header