ep1sgx25d Altera Corporation, ep1sgx25d Datasheet - Page 130

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

Digital Signal Processing Block
Figure 4–38. Four-Multipliers Adder Mode
Notes to
(1)
(2)
4–64
Stratix GX Device Handbook, Volume 1
These signals are not registered or registered once to match the data path pipeline.
These signals are not registered, registered once, or registered twice for latency to match the data path pipeline.
Figure
Data B
Data B
Data B
Data B
Data A
Data A
Data A
Data A
shiftout B
4–38:
shiftin B
shiftout A
D
ENA
D
ENA
D
ENA
D
ENA
D
ENA
D
ENA
D
ENA
D
ENA
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
shiftin A
Q
Q
Q
Q
Q
Q
Q
Q
signa (1)
signb (1)
clock
aclr
ena
D
ENA
D
ENA
D
ENA
D
ENA
CLRN
CLRN
CLRN
CLRN
Q
Q
Q
Q
addnsub1 (2)
addnsub3 (2)
signa (2)
signb (2)
Adder/Subtractor
Adder/Subtractor
Summation
ENA
D
CLRN
Q
Altera Corporation
February 2005
Data Out