EP2SGX30C Datasheet, PDF (120/314 Pages) Altera Corporation – Stratix II GX Device

I/O Structure
Figure 2–76. Stratix II GX IOE Structure
Logic Array
OE
OE Register
DQ
OE Register
DQ
Output A
Output B
Output Register
DQ
CLK
Output Register
DQ
Input A
Input B
Input Register
DQ
Input Register Input Latch
DQ
DQ
ENA
The IOEs are located in I/O blocks around the periphery of the
Stratix II GX device. There are up to four IOEs per row I/O block and four
IOEs per column I/O block. The row I/O blocks drive row, column, or
direct link interconnects. The column I/O blocks drive column
interconnects.
2–112
Stratix II GX Device Handbook, Volume 1
Altera Corporation
October 2007