Qi Wang, Field Application Engineer Synopsys

Power, Performance and Security Advantages of UFS Leveraging MIPI Specifications

©2017MIPIAlliance,Inc. 2

Agenda• UniquerequirementsofMobileSoCs

– Power,PerformanceandSecurity

• eMMC andUFSIPSolutionsforMobileSoCs• VerificationandValidationbeforesilicon• Summary

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UniqueRequirementsofMobileSoCs

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Power Performance Security

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EmergenceofEmbeddedStorageSolutions– UFS&eMMC

UFS for high-end and eMMC for mainstream

Image Source:Micron

Source: Micron

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PerformanceEvolution

Synopsys Source: Micron

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UFSSupportsMajorPowerSavingTechniques• MIPIM-PHY®specificationisbuiltfor“bursty”transmission

• Fastexit&entrytoLow-powermodeallowssignificantpowerreductionovertime

• “hurryupandshutdown”

• UFSPowerModeStateMachine• M-PHYlow-powerstate

– HIBERN8– STALL(inHS)– SLEEP(inLS)

• MIPIUniPro℠ lowpowerstate– HIBERN8– SLEEP

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UFSSupportsReferenceClockGatingforMorePowerSavings

ExampleofaUFShostanddeviceinterconnect

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UFSHost UFSDeviceUIC UIC

MIPIUniPro

MIPIM

-PHY

MIPIM

-PHY

MIPIUniPro

RST_nREF_CLKDIN_tDIN_cDIN_tDIN_c

HSModeReferenceclk ON

HSModeReferenceclk ON

HIBERN8Referenceclk OFF

LSMODEReferenceclk OFF

Linkstatetransitionsandpresenceofreferenceclocks

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UFSSupportsReferenceClockGatingforMorePowerSavings• Newattributetoenablewideadoptionofthislowpowerfeature

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Whitepaper on synopsys.com

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OtherLow-PowerTechniques• Intelligentclockpartitioning

– AllowsSoCdesignerstodeterminepowerprofile

• Clockgating/contextsensitiveclockgating– Reducedynamicpower– Context-basedgatingof

individualmodulesinthedesign

Synopsys

eMMC example -> up to 75% power reduction

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OtherLow-PowerTechniques• Multi-rail/powergating

– Reducesleakagepower– OnlyaportionoftheentireUFS

controllerhierarchywillbeon‘always-on’powerdomain;restcanbeswitchedoff

– DeeppowersavinginHIBERN8powerstate

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SecurityFeaturesEncryptionCapabilitiesThatMeetMobile/AndroidNeeds

• Androidsupportsfull-diskencryption– TheencryptionalgorithmsareAES-CBCorESSIV-AES-CBC

• Androidsupportsfile-basedencryption– TheencryptionalgorithmsareAES-XTSorAES-CBC-CTS

Synopsys

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SecurityFeaturesEncryptionCapabilitiesThatMeetMobile/AndroidNeeds• UFS(andsoon

eMMC)supportsAES-XTS,AES-CBC-CTS,AES-CBC,ESSIV-AES-CBCandAES-ECB

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AddressingDesignChallengesbyIntegratingHigh-QualityIP

eMMC & UFS Solutions

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Verification&ValidationBeforeSilicon

FPGA-based Prototype for HW validation & early SW development

Verifying UFS with VIP

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MIPIM-PHYv4.1ProveninSilicon

Synopsys

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Summary

• Availablehigh-qualityIP,verificationIPandhardwarevalidationsolutions• eMMC:mainstreammobilestorageapplicationsbalancingperformance&cost• UFS:next-generationsmart&powerfulhigh-enddevicesformobile&beyond

Synopsys

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Synopsys®DesignWare®MobileStorageIPPortfolio

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