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| HC4GX15 Datasheet, PDF (81/668 Pages) Altera Corporation – HardCopy IV Device Handbook | |||
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Chapter 7: External Memory Interfaces in HardCopy IV Devices
7â15
Memory Interfaces Pin Support
Figure 7â8 through Figure 7â11 show the number of DQS/DQ groups available per
bank in HardCopy IV GX device. These figures present the package-bottom view of
the specified HardCopy IV GX devices.
Figure 7â8. Number of DQS/DQ Groups per Bank in HC4GX15LA Devices in a 780-pin FineLine BGA Package (Note 1)
DLL1
I/O Bank 1A
(2)
32 User I/Os
Ã4=4
Ã8/Ã9=2
Ã16/Ã18=1
I/O Bank 1C
(3)
24 User I/Os
Ã4=3
Ã8/Ã9=1
Ã16/Ã18=0
I/O Bank 2C
(2)
24 User I/Os
Ã4=3
Ã8/Ã9=1
Ã16/Ã18=0
I/O Bank 2A
(2)
32 User I/Os
Ã4=4
Ã8/Ã9=2
Ã16/Ã18=1
DLL2
I/O Bank 8A
(4)
40 User I/Os
Ã4=6
Ã8/Ã9=3
Ã16/Ã18=1
I/O Bank 3A
(4)
40 User I/Os
Ã4=6
Ã8/Ã9=3
Ã16/Ã18=1
I/O Bank 8C
24 User I/Os
Ã4=2
Ã8/Ã9=1
Ã16/Ã18=0
I/O Bank 7C
24 User I/Os
Ã4=3
Ã8/Ã9=1
Ã16/Ã18=0
780-pin FineLine BGA
I/O Bank 3C
24 User I/Os
Ã4=2
Ã8/Ã9=1
Ã16/Ã18=0
I/O Bank 4C
24 User I/Os
Ã4=3
Ã8/Ã9=1
Ã16/Ã18=0
I/O Bank 7A
(4)
40 User I/Os
Ã4=6
Ã8/Ã9=3
Ã16/Ã18=1
I/O Bank 4A
(4)
40 User I/Os
Ã4=6
Ã8/Ã9=3
Ã16/Ã18=1
DLL4
DLL3
Notes to Figure 7â8:
(1) These devices do not support Ã32/Ã36 mode.
(2) There are no 1A, 2A, and 2C banks in HC4GX15L devices.
(3) There are no DQS/DQ groups, and 13 configuration pins in the bank 1C when migrating EP4SGX290 or EP4SGX360 prototype devices.
(4) You can use the DQS/DQSn pins in some of the Ã4 groups as RUP/RDN pins. You cannot use a Ã4 group for memory interfaces if two pins in the
group are used as RUP and RDN pins for OCT calibration. You can still use the Ã16/Ã18 groups, including the Ã4 groups. However, there are
restrictions on using Ã8/Ã9 groups that include these Ã4 groups.
© January 2010 Altera Corporation
HardCopy IV Device Handbook, Volume 1
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