Altera ALTDLL User Manual

Page 106

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A–5

Clear Box Generator Options

© February 2012

Altera Corporation

ALTDLL and ALTDQ_DQS Megafunctions User Guide

Table A–2

lists the high-level Clear Box parameters for the ALTDQ_DQS

megafunction.

USE_DLL_OFFSET_CTRL_A

String

No

Specifies whether to instantiate

DLL_OFFSET_CTRL_A

block. Values are

TRUE

and

FALSE

. If omitted, the default

is

FALSE

.

USE_DLL_OFFSET_CTRL_B

String

No

Specifies whether to instantiate

DLL_OFFSET_CTRL_B

block. Values are

TRUE

and

FALSE

. If omitted, the default

is

FALSE

.

Table A–1. ALTDLL Megafunction Parameters

(Part 3 of 3)

Parameter Name

Type

Required

Description

Table A–2. ALTDQ_DQS Megafunction High-Level Configurations

Parameter Name

Optional/
Required

Default

Legal Values

Description

USE_DQS

Optional

FALSE

FALSE, TRUE

Instantiates DQS IO if

TRUE

USE_DQS_INPUT_PATH

Optional

FALSE

FALSE, TRUE

Instantiates DQS input path if

TRUE

USE_DQS_OUTPUT_PATH

Optional

FALSE

FALSE, TRUE

Instantiates DQS output path if

TRUE

USE_DQS_OE_PATH

Optional

FALSE

FALSE, TRUE

Instantiates DQS OE path if

TRUE

DQS_DQSN_MODE

Optional

NONE

NONE,
DIFFERENTIAL,
COMPLEMENTARY

Instantiates DQS and DQSn I/Os as a
differential pair if

DIFFERENTIAL

,

Instantiate DQS and DQSn I/Os as a
complementary pair if

COMPLEMENTARY

,

Instantiate only a DQS IO if

NONE

NUMBER_OF_BIDIR_DQ

Optional

0

0, 1, 2 .. 48

Referred as

n

b

NUMBER_OF_OUTPUT_DQ

Optional

0

0, 1, 2 .. 48

Referred as

n

o

NUMBER_OF_INPUT_DQ

Optional

0

0, 1, 2 .. 48

Referred as

n

i

USE_DQ_OE_PATH

Optional

FALSE

FALSE, TRUE

Instantiates OE path for

OUTPUT_DQ

IOs

USE_HALF_RATE

Optional

FALSE

FALSE, TRUE

Instantiates half-rate components

USE_DYNAMIC_OCT

Optional

FALSE

FALSE, TRUE

Instantiates dynamic OCT
components

NUMBER_OF_CLK_DIVIDER

Optional

0

0,1, 2 .. 8

Referred as

n

c

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