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Altera ALTDQ_DQS2 User Manual

Page 46

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Legend in

I/O Configu‐

ration Block Bit

Sequence for Arria V

GZ and Stratix V

Devices

on page 40

Bit

Bit Name

Description

N

45

postamblephaseinvert

Connects to the phaseinvertctrl

port of the clock phase select (for

the DQS enable control block) to

select between the non-inverted

and inverted output.
Use this clock phase select block

to level the postamble

(dqsenablein signal at the DQS

enable control block).
This setting allows the phase

output from the delay chain to be

inverted to gain additional

phases.

65..46

dqs2xoutputphasesetting
n dqs2xoutputpowerdown
dqs2xoutputphaseinvert
dq2xoutputphasesetting
dq2xoutputpowerdown
dq2xoutputphaseinvert
ck2xoutputphasesetting
ck2xoutputpowerdown
ck2xoutputphaseinvert
dqoutputzerophasesetting
postamblezerophasesetting
postamblepowerdown
dividerioehratephaseinvert
dividerphaseinvert

Unconfigurable bits.
Always set bits to its default

value.

O

68..66

enaoctcycledelaysetting

Connects to the enaoutputcycle‐

delay port of the output

alignment block (in the dynamic

OCT control path) to allow

additional registers to be used.
Use this bit to adjust the phase of

the write-leveled OCT or output

data signal.

46

DQS Configuration Block Bit Sequence for Arria V GZ and Stratix V Devices

UG-01089

2014.12.17

Altera Corporation

ALTDQ_DQS2 IP Core User Guide

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