DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 92
DK-DEV-5SGXEA7/ES
Manufacturer Part Number
DK-DEV-5SGXEA7/ES
Description
KIT DEV STRATIX V FPGA 5SGXEA7
Manufacturer
Altera
Series
Stratix® Vr
Type
FPGAr
Specifications of DK-DEV-5SGXEA7/ES
Contents
Board
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
Stratix® V 5SGXEA7
Other names
544-2725
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1–14
Stratix V Device Handbook Volume 2: Device Interfaces and Integration
ALM Interconnects
Clear and Preset Logic Control
There are three dedicated paths between ALMs—register cascade, carry chain, and
shared arithmetic chain. Stratix V devices include an enhanced interconnect structure
in LABs for routing shared arithmetic chains and carry chains for efficient arithmetic
functions. The register chain connection allows the register output of one ALM to
connect directly to the register input of the next ALM in the LAB for fast shift
registers. These ALM-to-ALM connections bypass the local interconnect. The
Quartus II Compiler automatically takes advantage of these resources to improve
utilization and performance.
chain, and register chain interconnects.
Figure 1–13. Shared Arithmetic Chain, Carry Chain, and Register Chain Interconnects
LAB-wide signals control the logic for the register’s clear signal. The ALM directly
supports an asynchronous clear function. You can achieve the register preset through
the Quartus II software’s NOT-gate push-back logic option. Each LAB supports up to
two clears.
Stratix V devices provide a device-wide reset pin (DEV_CLRn) that resets all the
registers in the device. An option set before compilation in the Quartus II software
controls this pin. This device-wide reset overrides all other control signals.
routing to adjacent ALM
Carry chain and shared
arithmetic chain
interconnect
Chapter 1: Logic Array Blocks and Adaptive Logic Modules in Stratix V Devices
Figure 1–13
Local
shows the shared arithmetic chain, carry
Local interconnect
routing among ALMs
in the LAB
ALM 10
ALM 1
ALM 2
ALM 3
ALM 4
ALM 5
ALM 6
ALM 7
ALM 8
ALM 9
Register chain
routing to adjacent
ALM's register input
May 2011 Altera Corporation
Adaptive Logic Modules
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