A single register that exists on the periphery of supported device(Arria series, Cyclone series, and Stratix series) families or a bidirectional buffer on the periphery of MAX II and MAX V devices. I/O cells can help maximize timing performance, for example, by permitting fast setup times. I/O cells are also known as I/O elements.
The I/O cells in different devices support different I/O standards.
You can assign a logic function to a specific I/O cell.
I/O cells have "numbers" of the following format for the following devices:
|
Device Family |
Format for I/O Cell "Numbers" |
Variable and Number Descriptions |
|
|---|---|---|---|
|
Arria series, Cyclone series, MAX II, MAX V, Stratix series |
IOC_X <number> _Y <number> _N <number> |
X <number> |
The column number that contains the I/O cell. |
|
Y <number> |
The row number that contains the I/O cell. |
||
|
N <number> |
The I/O cell number. |
||