ep1s25 Altera Corporation, ep1s25 Datasheet - Page 73

• Manufacturer Part Number: ep1s25
• Description: Stratix Device Family Data Sheet
• Manufacturer: Altera Corporation

Altera Corporation
July 2005
Figure 2–33. Multiplier Sub-Blocks Using Input Shift Register Connections
Note (1)
Note to
(1)
Data B
Data A
Either Data A or Data B input can be set to a parallel input for constant coefficient
multiplication.
Data B
Data B
Figure
2–33:
Data A
Data A
D
ENA
D
ENA
D
ENA
D
ENA
D
ENA
D
ENA
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
Q
Q
Q
Q
Q
Q
Stratix Device Handbook, Volume 1
ENA
ENA
ENA
D
D
D
CLRN
CLRN
CLRN
Q
Q
Q
Stratix Architecture
A[n] × B[n]
A[n Ð 1] × B[n Ð 1]
A[n Ð 2] × B[n Ð 2]
2–59