Altera Hybrid Memory Cube Controller Bedienungsanleitung PDF herunterladen (Seite 24)

HMC Controller Signal Connects to TX PLL Signal

pll_powerdown output signal pll_powerdown reset pin of the external PLLs for all of the

HMC lanes.

pll_cal_busy input signal Logical OR of the pll_cal_busy output signals of the external

PLLs for all of the HMC lanes.

In the case of xN bonding, the single external PLL pll_cal_

busy output signal connects directly to the pll_cal_busy input

pin of the HMC Controller IP core.

User logic must provide the AND and OR functions and connections.

Related Information

• External PLL Interface on page 3-4

• Signals on the Interface to the External PLLs on page 4-15

• HMC Controller IP Core Example Design on page 6-1

The HMC Controller example design provides an example of how to connect external PLLs to your

HMC Controller IP core.

• Pin Constraints on page 2-9

Describes the requirement that your IP core lanes configure a maximum of three transceiver blocks.

• Arria 10 Transceiver PHY User Guide

Information about the bonding configurations and the correspondence between PLLs and transceiver

channels, and information about how to configure an external PLL for your own design. You specify

the bonding mode in the PLL parameter editor.

Adding the External I

C Master Module

The HMC Controller IP core requires that you instantiate an external I

C master module in your design.

Your design must include this module to initialize the HMC device to which your IP core connects.

The I

C master module in your system must load the HMC device configuration registers according to

the initialization requirements of the specific HMC device in your system.

The HMC specification requires that you set the HMC device REGISTER REQUEST commands register to

the value of Init Continue after sending the commands to initialize the HMC. Therefore, the I

C master

module must set this register to indicate successful completion of the HMC device configuration register

load sequence.

UG-01152

2015.05.04

Adding the External I

C Master Module

2-15

Getting Started with the HMC Controller IP Core

Altera Corporation

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Altera Hybrid Memory Cube Controller Bedienungsanleitung Seite 24