ep1agx50d Altera Corporation, ep1agx50d Datasheet - Page 110

• Manufacturer Part Number: ep1agx50d
• Description: Arria Gx Device Data Sheet
• Manufacturer: Altera Corporation

I/O Structure
Figure 2–67. Arria GX IOE Structure
2–102
Arria GX Device Handbook, Volume 1
Logic Array
Output A
Output B
Input B
Input A
OE
Output Register
Output Register
The IOEs are located in I/O blocks around the periphery of the Arria GX
device. There are up to four IOEs per row I/O block and four IOEs per
column I/O block. Row I/O blocks drive row, column, or direct link
interconnects. Column I/O blocks drive column interconnects.
D
D
Q
Q
CLK
OE Register
OE Register
D
D
Q
Q
Input Register
Input Register
D
D
Q
Q
Input Latch
D
ENA
Altera Corporation
Q
May 2008