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7–4
Table 7–1
Cyclone IV GX device.
Table 7–1. Cyclone IV GX Device DQS and DQ Bus Mode Support for Each Side of the Device
Device
Package
EP4CGX15
169-pin FBGA
169-pin FBGA
EP4CGX22
324-pin FBGA
EP4CGX30
484-pin FBGA
484-pin FBGA
EP4CGX50
EP4CGX75
672-pin FBGA
484-pin FBGA
EP4CGX110
672-pin FBGA
EP4CGX150
896-pin FBGA
Notes to
Table
7–1:
(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) Only available for EP4CGX30 device.
Cyclone IV Device Handbook,
Volume 1
lists the number of DQS or DQ groups supported on each side of the
Number
Side
Groups
Right
(1)
Top
(2)
Bottom
Right
(1)
Top
(2)
Bottom
Right
Top
Bottom
Right
(3)
Top
Bottom
Right
Top
Bottom
Right
Top
Bottom
Right
Top
Bottom
Right
Top
Bottom
Right
Top
Bottom
Chapter 7: External Memory Interfaces in Cyclone IV Devices
Cyclone IV Devices Memory Interfaces Pin Support
Number
Number
×8
×9
×16
Groups
Groups
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
2
2
1
2
2
1
2
2
1
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
4
2
2
6
3
2
6
3
3
6
3
3
Number
Number
Number
×18
×32
×36
Groups
Groups
Groups
0
—
—
0
—
—
0
—
—
0
—
—
0
—
—
0
—
—
1
—
—
1
—
—
1
—
—
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
3
1
1
3
1
1
March 2016 Altera Corporation
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