ep2sgx30c Altera Corporation, ep2sgx30c Datasheet - Page 60

• Manufacturer Part Number: ep2sgx30c
• Description: Stratix Ii Gx Device Data Sheet
• Manufacturer: Altera Corporation

Adaptive Logic Modules
Figure 2–37. ALM in Normal Mode
Note to
(1)
2–52
Stratix II GX Device Handbook, Volume 1
datae0
datae1
datae0
datae1
datae0
datae1
dataf0
dataf1
dataf0
dataf1
dataf0
dataf1
dataa
datab
datad
dataa
datab
datad
dataa
datab
datad
datac
datac
datac
Combinations of functions with less inputs than those shown are also supported. For example, combinations of
functions with the following number of inputs are supported: 4 and 3, 3 and 3, 3 and 2, 5 and 2, etc.
Figure
2–37:
3-Input
LUT
4-Input
4-Input
4-Input
5-Input
5-Input
LUT
LUT
LUT
LUT
LUT
The normal mode provides complete backward compatibility with
four-input LUT architectures. Two independent functions of four inputs
or less can be implemented in one Stratix II GX ALM. In addition, a
five-input function and an independent three-input function can be
implemented without sharing inputs.
Note (1)
combout0
combout1
combout0
combout1
combout0
combout1
datae0
datae1
datae0
datae0
datae1
dataf0
dataf1
dataf0
dataf0
dataf1
dataa
datab
datad
dataa
datab
datad
dataa
datab
datad
datac
datac
datac
6-Input
6-Input
6-Input
5-Input
5-Input
LUT
LUT
LUT
LUT
LUT
Altera Corporation
October 2007
combout0
combout1
combout0
combout0
combout1