Hybrid Memory Cube Controller IP Core User Guide - Intel Stratix 10 Beta Version

ID 683854
Date 8/08/2016
Public
Document Table of Contents

3.3. Clocking Structure

The HMC Controller IP core has a single core clock domain and multiple transceiver-related clock domains.

Your design must derive the external transceiver TX PLL reference clock, the RX CDR reference clock, and the REFCLKP and REFCLKN input signals of the external HMC device from the same clock reference source. This requirement ensures a 0 PPM difference between the receive and transmit clocks, as required by the HMC specification.

Figure 12. HMC Controller IP Core Clocking Diagram