EP1AGX ALTERA [Altera Corporation], EP1AGX Datasheet - Page 67

• Manufacturer Part Number: EP1AGX
• Description: Section I. Arria GX Device Data Sheet
• Manufacturer: ALTERA [Altera Corporation]

Chapter 2: Arria GX Architecture
Digital Signal Processing Block
Figure 2–51. DSP Block Diagram for 18 × 18-Bit Configuration
© December 2009 Altera Corporation
Optional Serial
Shift Register
Outputs to
Next DSP Block
in the Column
Optional Serial Shift Register
Inputs from Previous
DSP Block
ENA
ENA
ENA
ENA
ENA
ENA
ENA
D
D
D
D
D
D
D
D
ENA
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
CLRN
Q
Q
Q
Q
Q
Q
Q
Q
Multiplier Stage
Optional Input Register
Stage with Parallel Input or
Shift Register Configuration
ENA
ENA
D
D
D
ENA
D
ENA
CLRN
CLRN
CLRN
CLRN
Q
Q
Q
Q
Optional Stage Configurable
as Accumulator or Dynamic
Adder/Subtractor
Optional Pipeline
Register Stage
Accumulator
Accumulator
Accumulator
Subtractor/
Subtractor/
Subtractor/
Adder/
Adder/
Adder/
1
2
Summation Stage
for Adding Four
Multipliers Together
Summation
Output Selection
Arria GX Device Handbook, Volume 1
Multiplexer
to MultiTrack
Interconnect
Optional Output
Register Stage
2–61