Altera MAX 10 Embedded Multipliers Manual de usuario Pagina 1

MAX 10 Embedded Multipliers UserGuideSubscribeSend FeedbackUG-M10DSP2014.09.22101 Innovation DriveSan Jose, CA 95134www.altera.com

Embedded Multipliers Implementation Guides32014.09.22UG-M10DSPSubscribeSend FeedbackThe Quartus II software contains tools for you to create and compi

• Filter IP Catalog to Show IP for active device family or Show IP for all device families.• Search to locate any full or partial IP core name in IP C

• Optionally select preset parameter values. Presets specify all initial parameter values for specificapplications (where provided).• Specify paramete

LPM_MULT (Multiplier) IP Core References42014.09.22UG-M10DSPSubscribeSend FeedbackLPM_MULT Parameter SettingsThere are three groups of options: Genera

Table 4-2: LPM_MULT Parameters - General2This table lists the IP core parameters applicable to MAX 10 devices.GUI Parameter Parameter Condition Value

LPM_MULT PortsTable 4-4: LPM_MULT IP Core Input PortsPort Name Required Descriptiondataa[] Yes Data input. The size of the input port depends on the L

ALTMULT_ACCUM (Multiply-Accumulate) IPCore References52014.09.22UG-M10DSPSubscribeSend FeedbackALTMULT_ACCUM Parameter SettingsThere are four groups o

GUI Parameter Parameter Condition Value Description‘signa’ input controlsthe sign (1 signed/0unsigned)PORT_SIGNA InputRepresentation >What is there

GUI Parameter Parameter Condition Value DescriptionInput Register > Whatis the source for clockinput?SIGN_REG_B InputRepresentation >More Option

GUI Parameter Parameter Condition Value DescriptionWhich multiplier-adder implementationshould be used?DEDICATED_MULTIPLIER_CIRCUITRY—• Use thedefault

ContentsEmbedded Multiplier Block Overview...1-1Embedded Multipliers Features and Archite

GUI Parameter Parameter Condition Value DescriptionWhat is the source forclock input?INPUT_REG_B• InputConfiguration> Registerinput B of themultipl

GUI Parameter Parameter Condition Value DescriptionWhat is the source forasynchronous clearinput?MULTIPLIER_ACLR• OutputConfiguration> Registeroutp

GUI Parameter Parameter Condition Value DescriptionInput Register > Whatis the source for clockinput?ACCUM_SLOAD_REG• Accumulator> Create an‘acc

ALTMULT_ACCUM PortsTable 5-5: ALTMULT_ACCUM IP Core Input PortsPort Name Required Descriptionaccum_sload NoCauses the value on the accumulator feedbac

Port Name Required Descriptionsigna No Specifies the numerical representation of the dataa[] port. Ifthe signa port is high, the multiplier treats the

ALTMULT_ADD (Multiply-Adder) IP CoreReferences62014.09.22UG-M10DSPSubscribeSend FeedbackALTMULT_ADD Parameter SettingsThere are three groups of option

GUI Parameter Parameter Condition Value Description‘signa’ input controlsthe sign (1 signed/0unsigned)PORT_SIGNA InputRepresentation >What is there

GUI Parameter Parameter Condition Value DescriptionInput Register > Whatis the source for clockinput?SIGNED_REGISTER_BInputRepresentation >More

GUI Parameter Parameter Condition Value DescriptionWhat is the source forasynchronous clearinput?OUTPUT_ACLR• OutputsConfiguration> Registeroutput

GUI Parameter Parameter Condition Value DescriptionPipeline Register >What is the source forasynchronous clearinput?ADDNSUB_MULTIPLIER_PIPELINE_ACL

Embedded Multiplier Block Overview12014.09.22UG-M10DSPSubscribeSend FeedbackThe embedded multiplier is configured as either one 18 x 18 multiplier or

GUI Parameter Parameter Condition Value DescriptionWhich multiplier-adder implementationshould be used?DEDICATED_MULTIPLIER_CIRCUITRY—• Use thedefault

GUI Parameter Parameter Condition Value DescriptionWhat is the source forclock input?INPUT_REGISTER_B[0..3]• InputConfiguration> Registerinput B of

GUI Parameter Parameter Condition Value DescriptionWhat is the source forasynchronous clearinput?MULTIPLIER_ACLR[]• OutputConfiguration> Registerou

Port Name Required Descriptionscanouta[] No Output of scan chain A. Output port [WIDTH_A - 1..0]wide.scanoutb[] No Output of scan chain B. Output port

ALTMULT_COMPLEX (Complex Multiplier) IPCore References72014.09.22UG-M10DSPSubscribeSend FeedbackALTMULT_COMPLEX Parameter SettingsThere are two groups

GUI Parameter Parameter Condition Value DescriptionOutput latency []clock cyclesPIPELINE — 0–14 Specifies the numberof clock cycles foroutput latency.

Port Name Required Descriptionresult_real Yes Real output value of the multiplier. The size of the output portdepends on the WIDTH_RESULT parameter va

Additional Information for MAX 10 EmbeddedMultipliers User GuideA2014.09.22UG-M10DSPSubscribeSend FeedbackDocument Revision History for MAX 10 Embedde

Device EmbeddedMultipliers9 x 9 Multipliers (1)18 x 18 Multipliers (1)10M25 55 110 5510M40 125 250 12510M50 144 288 144You can implement soft multipli

Embedded Multipliers Features andArchitecture22014.09.22UG-M10DSPSubscribeSend FeedbackEach embedded multiplier consists of three elements. Depending

• An input register• The multiplier in 9- or 18-bit sectionsEach multiplier input signal can be sent through a register independently of other input s

• Clock• Clock enable• Asynchronous clearAll input and output registers in a single embedded multiplier are fed by the same clock, clock enable, andas

All 18-bit multiplier inputs and results are independently sent through registers. The multiplier inputs canaccept signed integers, unsigned integers,

Each embedded multiplier block has only one signa and one signb signal to control the sign representa‐tion of the input data to the block. If the embe