ZedBoard HW Users Guide - Digilent Reference

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ZedBoard Zynq Evaluation and Development Hardware User s Guide Version August 1st, 2012 1-Aug-2012 1 Revision History Rev date Rev # Reason for change 8/1/12 Initial ZedBoard User s Guide 8/2/12 Mapped Configuration Mode Table to match ZedBoard layout 1-Aug-2012 2 Table of Contents 1 INTRODUCTION ........................................ ........................................ ........................................ .......... 3 ZYNQ BANK PIN ASSIGNMENTS ........................................ ........................................ ...................... 5 2 FUNCTIONAL DESCRIPTION ........................................ ........................................ ............................ 6 EPP.

Aug 01, 2012 · DDR3 on the PS was routed with 40 ohm trace impedance for single-ended signals, and DCI resistors (VRP/VRN) as well as differential clocks set to 80 ohms. Each DDR3 chip needs its own 240-ohm pull-down on ZQ. DDR-VDDQ is set to 1.5V to support the DDR3 devices selected. DDR-VTT is the termination voltage which is ½ DDR-VDDQ.

  Resistor, Zedboard