EP1C20F ALTERA [Altera Corporation], EP1C20F Datasheet - Page 38

• Manufacturer Part Number: EP1C20F
• Description: Cyclone FPGA Family
• Manufacturer: ALTERA [Altera Corporation]

Cyclone Device Handbook, Volume 1
Figure 2–24. I/O Clock Regions
2–32
Preliminary
6
6
6
Cyclone Logic Array
LAB Row Clocks
LAB Row Clocks
LAB Row Clocks
labclk[5..0]
labclk[5..0]
labclk[5..0]
6
6
PLLs
Cyclone PLLs provide general-purpose clocking with clock
multiplication and phase shifting as well as outputs for differential I/O
support. Cyclone devices contain two PLLs, except for the EP1C3 device,
which contains one PLL.
Column I/O Clock Region
Column I/O Clock Region
IO_CLK[5..0]
IO_CLK[5..0]
8
Global Clock
Network
LAB Row Clocks
LAB Row Clocks
LAB Row Clocks
labclk[5..0]
labclk[5..0]
labclk[5..0]
6
6
6
Altera Corporation
I/O Clock Regions
I/O Clock Regions
Row
I/O Regions
May 2008