ep1sgx25d Altera Corporation, ep1sgx25d Datasheet - Page 163

• Manufacturer Part Number: ep1sgx25d
• Description: Stratix Gx Device Family Data Sheet
• Manufacturer: Altera Corporation

Figure 4–58. Stratix GX IOE Structure
Altera Corporation
February 2005
Logic Array
Output B
Output A
Input B
Input A
OE
The IOEs are located in I/O blocks around the periphery of the Stratix GX
device. There are up to four IOEs per row I/O block and six 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.
Figure 4–59
Figure 4–60
Output Register
Output Register
D
D
Q
Q
shows how a row I/O block connects to the logic array.
shows how a column I/O block connects to the logic array.
CLK
OE Register
OE Register
D
D
Q
Q
Input Register
Input Register
Stratix GX Device Handbook, Volume 1
D
D
Q
Q
Input Latch
D
ENA
Stratix GX Architecture
Q
4–97