EP1C3 ALTERA [Altera Corporation], EP1C3 Datasheet - Page 45

• Manufacturer Part Number: EP1C3
• Description: Cyclone FPGA Family
• Manufacturer: ALTERA [Altera Corporation]

Preliminary Information
Altera Corporation
Figure 27. Cyclone IOE Structure
Note to
(1)
The IOEs are located in I/O blocks around the periphery of the Cyclone
device. There are up to three IOEs per row I/O block and up to three IOEs
per column I/O block (column I/O blocks span two columns). The row
I/O blocks drive row, column, or direct link interconnects. The column
I/O blocks drive column interconnects.
block connects to the logic array.
block connects to the logic array.
There are two paths available for combinatorial inputs to the logic array. Each path
contains a unique programmable delay chain.
Figure
27:
Logic Array
Combinatorial
input (1)
Output
Input
OE
Figure 29
Output Register
Input Register
OE Register
D
D
D
Figure 28
Q
Q
Q
Cyclone FPGA Family Data Sheet
shows how a column I/O
shows how a row I/O
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