EP2SGX30CF780C5N Datasheet, PDF (60/316 Pages) Altera Corporation – Section I. Stratix II GX Device Data Sheet

Adaptive Logic Modules
Figure 2–37. ALM in Normal Mode Note (1)
dataf0
datae0
datac
dataa
datab
datad
datae1
dataf1
4-Input
LUT
4-Input
LUT
combout0
dataf0
datae0
datac
dataa
datab
combout1
datad
datae1
dataf1
5-Input
LUT
combout0
5-Input
LUT
combout1
dataf0
datae0
datac
dataa
datab
datad
datae1
dataf1
dataf0
datae0
datac
dataa
datab
datad
datae1
dataf1
5-Input
LUT
3-Input
LUT
5-Input
LUT
combout0
combout1
dataf0
datae0
dataa
datab
datac
datad
combout0
dataf0
datae0
dataa
datab
datac
datad
4-Input
LUT
combout1
datae1
dataf1
6-Input
LUT
combout0
6-Input
LUT
combout0
6-Input
LUT
combout1
Note to Figure 2–37:
(1) 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.
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.
2–52
Stratix II GX Device Handbook, Volume 1
Altera Corporation
October 2007