EP2AGX65 datasheet(44/380 Pages) ALTERA

Part #	EP2AGX65

Description	Device Interfaces and Integration

Download	380 Pages

Scroll/Zoom	100%

Manufacturer	ALTERA [Altera Corporation]

Direct Link	http://www.altera.com

Logo

44 / 380 page

2–14

Chapter 2: Logic Array Blocks and Adaptive Logic Modules in Arria II Devices

Adaptive Logic Modules

Arria II Device Handbook Volume 1: Device Interfaces and Integration

December 2010

Altera Corporation

Shared Arithmetic Chain

The shared arithmetic chain available in enhanced arithmetic mode allows the ALM

to implement a 3-input add. This significantly reduces the resources necessary to

implement large adder trees or correlator functions.

The shared arithmetic chains can begin in either the first or sixth ALM in an LAB. The

Quartus II Compiler creates shared arithmetic chains longer than 20 ALMs (10 ALMs

in arithmetic or shared arithmetic mode) by linking LABs together automatically. To

enhance fitting, a long shared arithmetic chain runs vertically, allowing fast horizontal

connections to the TriMatrix memory and DSP blocks. A shared arithmetic chain can

continue as far as a full column.

Similar to the carry chains, the top and bottom half of shared arithmetic chains in

alternate LAB columns can be bypassed. This capability allows the shared arithmetic

chain to cascade through half of the ALMs in an LAB while leaving the other half

available for narrower fan-in functionality. Every other LAB column is top-half

bypassable, while the other LAB columns are bottom-half bypassable.

1 For more information on shared arithmetic chain interconnect, refer to “ALM

Interconnects” on page 2–17.

Similar Part No. - EP2AGX65

Manufacturer	Part #	Datasheet	Description
Altera Corporation	EP2AGX125EF29I5N	801Kb / 78P	Device Datasheet for Arria II Devices
	EP2AGX190FF35C4N	1Mb / 90P	Volume 3: Device Datasheet and Addendum
	EP2AGX260EF29C5N	801Kb / 78P	Device Datasheet for Arria II Devices
	EP2AGX260EF29I3N	820Kb / 78P	Device Datasheet for Arria II Devices
	EP2AGX260FF35I3N	801Kb / 28P	Device Datasheet for Arria II Devices

Manufacturer	Part #	Datasheet	Description
Altera Corporation	EP2AGZ225HF40I3N	10Mb / 382P	Volume 1: Device Interfaces and Integration
Texas Instruments	TNETA1575	693Kb / 45P	[Old version datasheet] ATM SEGMENTATION AND REASSEMBLY DEVICE WITH PCI-HOST AND COPROCESSOR INTERFACES
Lumileds Lighting Compa...	DS113	2Mb / 20P	Best punch and easy integration
Lumileds Lighting Compa...	LXS0-PR00-0017N	2Mb / 20P	Best punch and easy integration
Texas Instruments	TNETA1585	476Kb / 32P	[Old version datasheet] ATM TRAFFIC MANAGEMENT SCHEDULER DEVICE WITH RECEIVE UTOPIA AND COPROCESSOR INTERFACES
Intel Corporation	P4304XXMUXX	12Mb / 107P	System Integration and Service Guide Revision 1.3 May 2017
Maxim Integrated Produc...	MAX14827A	916Kb / 42P	High Configurability and Integration Reduce SKUs Rev 1; 9/16
Semtech Corporation	ECLAMP2410P	327Kb / 9P	ESD Protecton Device for T-Flash/MicroSD Interfaces
NXP Semiconductors	MWCT101XSF	1Mb / 65P	Memory and memory interfaces Rev. 3, 12/2019
PHOENIX CONTACT	2203183	54Kb / 2P	Integration of TFT display and membrane keypads