Altera ALTDLL - Manual (Page 24)

3–6 Chapter 3: Parameter Settings
ALTDQ_DQS Parameter Editor
ALTDLL and ALTDQ_DQS Megafunctions User Guide © February 2012 Altera Corporation
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Table 3–3. Options on Parameter Settings Page (Part 1 of 2)
Parameter Name Legal Value
Clear Box
Parameter Name Description
RLDRAMII mode NONE, x9,
x18, or x36 RLDRAMII_MODE Enables RLDRAM II support for ALTDQ_DQS instance.
If you select x9 or x18 mode, the DK pins do not have
group assignments, but they must be placed in the same
bank or chip edge as the other pins in the interface. If you
select x36 mode, the DK/DK# pins must be placed
manually in DQS locations.
If you select x18 mode, place the DM pins in either group
0 or group 1, which forces QVLD to the other group. If you
select x36 mode, place the DM pins in group 0 or 1, and
QVLD to be in group 0 or 1.
All combinations are allowed. Not supported in Arria II GX.
Data mask pin
group NONE,
GROUP0, or
GROUP1 DM_LOC Specifies the group assignment for the DM pin group.
If you select NONE for the RLDRAMII mode option, then
this option defaults to NONE.
If you select x9 for the RLDRAMII mode option, then this
option defaults to NONE.
If you select x18 for the RLDRAMII mode option, then for
this option you can select either NONE, GROUP0, or
GROUP1. If you select GROUP0, then GROUP1 is used for
the Q valid signal group option, and if you select
GROUP1, then GROUP0 is used for the Q valid signal
group option.
If you select x36 for the RLDRAMII mode option, then for
this option you can select either NONE, GROUP0, or
GROUP1.
Not supported in Arria II GX devices.
Q valid signal
group NONE,
GROUP0, or
GROUP1 QVLD_LOC Specifies the group assignment for the Q valid signal
group.
If you select NONE for the RLDRAMII mode option, then
this option defaults to NONE.
If you select x9 for the RLDRAMII mode option, then this
option defaults to GROUP0.
If you select x18 for the RLDRAMII mode option, then this
option depends on the Data mask pin group option. If you
select GROUP0 for the Data mask pin group option, then
GROUP1 is defaulted for this option, and if you select
GROUP1 for the Data mask pin group option, then
GROUP0 is defaulted for this option.
If you select x36 for the RLDRAMII mode option, then for
this option you can select either NONE, GROUP0, or
GROUP1.
Not supported in Arria II GX devices.
Number of
bidirectional DQ 0–48 NUMBER_OF_
BIDIR_DQ
Specifies the number of bidirectional DQ ports used in the
ALTDQ_DQS instance.