Embedded Multipliers
Figure 2–17. M4K RAM Block LAB Row Interface
C4 Interconnects
R4 Interconnects
16
Direct link
Direct link
interconnect
to adjacent LAB
interconnect
to adjacent LAB
dataout
M4K RAM
Block
Direct link
Direct link
16
16
interconnect
interconnect
from adjacent LAB
from adjacent LAB
Byte enable
Control
Signals
Clocks
address
datain
6
M4K RAM Block Local
Interconnect Region
LAB Row Clocks
f
For more information on Cyclone II embedded memory, see the
Cyclone II Memory Blocks chapter in Volume 1 of the Cyclone II Device
Handbook.
Cyclone II devices have embedded multiplier blocks optimized for
multiplier-intensive digital signal processing (DSP) functions, such as
finite impulse response (FIR) filters, fast Fourier transform (FFT)
functions, and discrete cosine transform (DCT) functions. You can use the
embedded multiplier in one of two basic operational modes, depending
on the application needs:
Embedded
Multipliers
■
■
One 18-bit multiplier
Up to two independent 9-bit multipliers
2–32
Altera Corporation
February 2007
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
