ep1sgx25d Altera Corporation, ep1sgx25d Datasheet - Page 120

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

Digital Signal Processing Block
Figure 4–32. Multiplier Sub-Blocks Using Input Shift Register Connections
Note to
(1)
4–54
Stratix GX Device Handbook, Volume 1
Either Data A or Data B input can be set to a parallel input for constant coefficient multiplication.
Figure
4–32:
Data B
Data A
Data B
Data B
Data A
Data A
ENA
ENA
ENA
ENA
ENA
ENA
D
D
D
D
D
D
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
Q
Q
Q
Q
Q
Q
ENA
ENA
ENA
D
D
D
CLRN
CLRN
CLRN
Q
Q
Q
A[n] × B[n]
A[n Ð 1] × B[n Ð 1]
A[n Ð 2] × B[n Ð 2]
Note (1)
Altera Corporation
February 2005