Jaehyek Choi Embedded/Firmware Engineer

eMMC & UFS About UFS (3)

2016-03-07
Jaehyek
   

UFS HCI ( HOST Controller Interface )

001

HCI Register

002 003

UTP Transfer Request

004

UTP Transfer Request Completion

005

006

Host Power Mode Change

007

UFS Device

Device E2E Interface

008

Logical Unit

  • LU : Externally addressable, independent, processing entity
  • Device contains 1 or Max 8 Normal logical units & 4 Well-known LU
  • A Logical unit contains :
    • DEVICE SERVER : Processing SCSI Commands
    • TASK MANAGER : Performs Task management Functions
    • TASK SET : A Conceptual Group of Commands

009

LU Configuration

010 010-1

LU Configuration : description

011

Higher Priority LU

012 013

Boot Sequence

014

SCSI Command & Operation (Unmap)

015

Write Protection

016


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