EP1S40B956C5 Altera, EP1S40B956C5 Datasheet - Page 568

• Manufacturer Part Number: EP1S40B956C5
• Description: IC STRATIX FPGA 40K LE 956-BGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S40B956C5

• Number Of Logic Elements/cells: 41250
• Number Of Labs/clbs: 4125
• Total Ram Bits: 3423744
• Number Of I /o: 683
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 956-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Operational Modes
Operational
Modes
6–18
Stratix Device Handbook, Volume 2
Simple multiplier
Multiply accumulator
Two-multiplier adder
Four-multiplier adder
Table 6–5. DSP Block Operational Modes
Mode
Eight multipliers with eight
product outputs
Two 34-bit multiply-
accumulate blocks
Four two-multiplier adders Two two-multiplier adders
Two four-multiplier adders One four-multiplier adder
The row interface block has DirectLink™ connections that connect the
DSP block input or output signals to the left and right adjacent LABs at
each row. (The DirectLink connections provide interconnects between
LABs and adjacent blocks.) The DirectLink connection reduces the use of
row and column interconnects, providing higher performance and
flexibility.
Each row interface block receives 10 DirectLink connections from the
right adjacent LABs and 10 from the left adjacent LABs. Additionally, the
row interface block receives signals from the DSP block, making a total of
30 local interconnects for each row interface block. All of the row and
column resources within the DSP block can access this interconnect
region (see
A DSP block has nine outputs that drive the right adjacent LAB and nine
that drive the left adjacent LAB through DirectLink interconnects. All
18 outputs drive any row or column.
You can use the DSP block in one of four operational modes, depending
on your application needs (see
built-in megafunctions that you can use to control the mode. After you
have made your parameter settings using the megafunction’s
MegaWizard
the DSP block.
Simple Multiplier Mode
In simple multiplier mode, the DSP block performs individual
multiplication operations for general-purpose multipliers and for
applications such as equalizer coefficient updates that require many
individual multiplication operations.
9
Figure 6–7 on page
9
®
Plug-In, the Quartus II software automatically configures
Four multipliers with four
product outputs
Two 52-bit multiply-
accumulate blocks
6–14).
Table
18
18
6–4). The Quartus II software has
One multiplier
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Altera Corporation
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July 2005