Altera ALTDLL User Manual
Page 106

A–5
Clear Box Generator Options
© February 2012
Altera Corporation
ALTDLL and ALTDQ_DQS Megafunctions User Guide
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