ALTDQ_DQS2 IP Core User Guide

ID 683742
Date 5/08/2017
Public
Document Table of Contents

ALTDQ_DQS2 PLL and DLL Ports

ALTDQ_DQS2 PLL and DLL Ports

Port name

Type

Width

Description

dll_delayctrl_in[]

Input

7

Receives the 7-bit delay settings from the dll_delayctrlout port of the ALTDLL instance. This 7-bit signal controls delay through the DQS delay chains. Compilation error occurs if this port is not connected to a DLL.

This port is supported in Arria V, Cyclone V, and Stratix V devices.

fr_clock_in

Input

1

Receives the full-rate clock signal from a clock pin, or the PLL clock output port.

This port is supported in Arria V, Cyclone V, and Stratix V devices.

hr_clock_in

Input

1

Receives the half-rate clock signal from a clock pin, or the PLL clock output port.

This port is supported in Arria V, Cyclone V, and Stratix V devices.

Note: For more information about DLL in Stratix V device, refer to “Delay-Locked Loop” in the External Memory Interfaces in Stratix V Devices chapter of the Stratix V Device Handbook.
Note: For more information about PLL in Stratix V devices, refer to “PLL Specifications” in DC and Switching Characteristics for Stratix V Devices chapter of the Stratix V Device Handbook.