EP3SL150F780I3N Altera, EP3SL150F780I3N Datasheet - Page 44

• Manufacturer Part Number: EP3SL150F780I3N
• Description: Stratix III
• Manufacturer: Altera

Adaptive Logic Modules
Figure 2–7. ALM in Normal Mode
Note to
(1)
2–10
Stratix III Device Handbook, Volume 1
datae0
datae1
datae0
datae1
datae0
datae1
dataf0
dataf1
dataf0
dataf1
dataf0
dataf1
dataa
datab
datad
datac
dataa
datab
datad
datac
dataa
datab
datad
Combinations of functions with fewer 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.
datac
Figure
2–7:
3-Input
LUT
4-Input
5-Input
5-Input
4-Input
4-Input
LUT
LUT
LUT
LUT
LUT
The normal mode provides complete backward compatibility with
four-input LUT architectures.
For the packing of 2 five-input functions into one ALM, the functions
must have at least two common inputs. The common inputs are dataa
and datab. The combination of a four-input function with a five-input
function requires one common input (either dataa or datab).
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