EP4CE30F29C7N Datasheet, PDF (153/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

Chapter 7: External Memory Interfaces in Cyclone IV Devices
7–7
Cyclone IV Devices Memory Interfaces Pin Support
Table 7–2. Cyclone IV E Device DQS and DQ Bus Mode Support for Each Side of the Device (Part 3 of 3)
Device
Package
Number Number Number Number Number Number
Side
×8
×9
×16
×18
×32
×36
Groups Groups Groups Groups Groups Groups
Left
4
4
2
2
1
1
484-pin UBGA
Right
Bottom
4
4
2
2
1
1
4
4
2
2
1
1
Top
4
4
2
2
1
1
EP4CE40
EP4CE55
EP4CE75
484-pin FBGA
Left
Right
Bottom
Top
4
4
2
2
1
1
4
4
2
2
1
1
4
4
2
2
1
1
4
4
2
2
1
1
Left
4
4
2
2
1
1
780-pin FBGA
Right
Bottom
4
4
2
2
1
1
6
6
2
2
1
1
Top
6
6
2
2
1
1
Notes to Table 7–2:
(1) Some of the DQ pins can be used as RUP and RDN pins. You cannot use these groups if you are using these pins as RUP and RDN pins for
OCT calibration.
(2) Some of the DQ pins can be used as RUP pins while the DM pins can be used as RDN pins. You cannot use these groups if you are using the
RUP and RDN pins for OCT calibration.
(3) There is no DM pin support for these groups.
(4) PLLCLKOUT3n and PLLCLKOUT3p pins are shared with the DQ or DM pins to gain ×8 DQ group. You cannot use these groups if you are using
PLLCLKOUT3n and PLLCLKOUT3p.
f For more information about device package outline, refer to the Device Packaging
Specifications webpage.
DQS pins are listed in the Cyclone IV pin tables as DQSXY, in which X indicates the DQS
grouping number and Y indicates whether the group is located on the top (T), bottom
(B), or right (R) side of the device. Similarly, the corresponding DQ pins are marked as
DQXY, in which the X denotes the DQ grouping number and Y denotes whether the
group is located on the top (T), bottom (B), or right (R) side of the device. For example,
DQS2T indicates a DQS pin belonging to group 2, located on the top side of the device.
Similarly, the DQ pins belonging to that group is shown as DQ2T.
1 Each DQ group is associated with its corresponding DQS pins, as defined in the Cyclone
IV pin tables. For example:
■ For DDR2 or DDR SDRAM, ×8 DQ group DQ3B[7..0] pins are associated with
the DQS3B pin (same 3B group index)
■ For QDR II SRAM, ×9 Q read-data group DQ3T[8..0] pins are associated with
DQS0T/CQ0T and DQS1T/CQ0T# pins (same 0T group index)
The Quartus^® II software issues an error message if a DQ group is not placed properly
with its associated DQS.
May 2013 Altera Corporation
Cyclone IV Device Handbook,
Volume 1