ep2c35 Altera Corporation, ep2c35 Datasheet - Page 60
ep2c35
Manufacturer Part Number
ep2c35
Description
Cyclone Ii Device Family Data Sheet
Manufacturer
Altera Corporation
Datasheet
1.EP2C35.pdf
(168 pages)
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I/O Structure & Features
Figure 2–27. DDR SDRAM Interfacing
2–48
Cyclone II Device Handbook, Volume 1
PLL
OE
-90˚ Shifted clk
Register
LE
Register
f
clk
LE
GND
V CC
Register
Register
LE
LE
For more information on Cyclone II external memory interfaces, see the
External Memory Interfaces chapter in Volume 1 of the Cyclone II Device
Handbook.
Control Circuitry
Clock Delay
DQS
t
Clock Control
Block
OE
ENOUT
Register
LE
en/dis
Register
LE
DataA
DataB
Dynamic Enable/Disable
ena_register_mode
Circuitry
Register
Register
Global Clock
LE
LE
DQ
Register
Register
LE
LE
Altera Corporation
Register
LE
February 2007
Resynchronizing
to System Clock
Adjacent LAB LEs
Register
Register
LE
LE