Samsung 100737108-A

Spinpoint M8-DVR OEM Product Manual REV 1.0

62

Table 8-11 Set Features Register Definitions

Code Description

02h

Enable Write Cache

03h

Set transfer mode based on value in Sector Count re gister

06h

Enable Power-Up in Standby Mode

07h

Power-Up in Standby feature set device spin up

10h

Enable use of SATA features

SC=02: DMA Setup FIS Auto Activate auto mation

SC=03: Device-initiated interface power state transitio n

SC=06: Software Settings Preservation

44h

Obsolete (Set VU ECC length)

55h

Disable read look-ahead feature

82h

Disable Write Cache

86h

Disable Power-Up in Standby Mode

90h

Disable use of SATA features

SC=02: DMA Setup FIS Auto Activate auto mation

SC=03: Device-initiated interface power state transition

SC=06: Software Settings Preservation

AAh Enable read look-ahead feature

BBh Obsolete (Set 4-byte ECC length)

D2h-DFh VU Features

F0h-FFh VU Features

When the drive receives this command, it checks the contents of the Feature register, clears BSY, and

generates an interrupt. If the value in the Feature register is not supported or is invalid, the drive posts an

Aborted Command error.

A host can choose the transfer mechanism b y Set Transfer Mode and specifying a value in the Sector Count

register in feature 03. The upper 5 bits define the type of transfer, and the low order 3 bits encode the mode

value. Refer to the following table for detail s.

Table 8-12 Transfer Mode

Values

Mode

Bits(7:3)

Bits(2:0)

PIO default mode

00000

000

PIO default mode, disable IORDY

00000

001

PIO flow control transfer mode

00001

mode

Multiword DMA mode

00100

mode

Ultra DMA mode

01000

mode

Mode = transfer mode number

Contents

Main 2.5 Hard Disk Drive September 04, 2013. Rev 1.0 Page TABLE OF CONTENTS Page Page TABLE OF TABLES 1.2 Manual Organization Spinpoint M8-DVR OEM Product Manual REV 1.0 1.3 SATA 1.4 Reference 2.1 Introduction 2.2 Key Features 2.3 Standards and Regulations 3.1 Specification Summary 3.2 Physical Specifications 3.3 Logical Configurations 3.4 Performance Specifications 3.5 Power consumption 3.6 Environmental Specifications Page 3.7 Reliability Specifications 3.8 Annualized Failure Rate (AFR) 4.2 Unpacking Instructions 4.3.1 Orientation 4.3.2 Ventilation 4.4 Cable Connectors Computer mainboard or host Serial ... Pin Function Definition Page 4.5 Drive Installation Spinpoint M8-DVR OEM Product Manual REV 1.0 Assembly over C 5.2 Drive Electronics Page 5.2.3 Read/Write IC 5.3 Servo System 5.4 Read and Write Operations 5.5 Firmware Features 5.5.1 Read Caching P 5.5.6 A M Spinpoint M8-DVR OEM Product Manual REV 1.0 CHAPTER 6 SATA II INTERFACE 6.1 Introduction 6.1.1 SATA Terminology Page 6.3 Signal Summary 6.3.3 Control Block Register Descriptions Page CHAPTER 7 SATA II FEATURE SET 7.6 Software Settings Preservation 7.7 SATA Power Management CHAPTER 8 ATA COMMAND DESCRIPTIONS Extended 8.2 Command Descriptions Page 8.2.4 Execute Device Diagnostics (90h) Code Description Page Spinpoint M8-DVR OEM Product Manual REV 1.0 8.2.8 Idle (E3h) Sector Count Register Contents Corresponding Time-Out Period 8.2.14 Read FPDMA Queued (60h) Spinpoint M8-DVR OEM Product Manual REV 1.0 8.2.19 Read Sector(s) (20h, 24h: extended) 8.2.21 Recalibrate (10h) 8.2.22 Security Disable Password (F6h) 8.2.27 Security Unlock (F2h) 8.2.28 Seek (7xh) 8.2.29 Set Features (EFh) Mode Bits(7:3) Bits(2:0) Spinpoint M8-DVR OEM Product Manual REV 1.0 Feature Value Command Command Spinpoint M8-DVR OEM Product Manual REV 1.0 Byte F/V Descriptions Byte Definition Spinpoint M8-DVR OEM Product Manual REV 1.0 Bit Name Description Spinpoint M8-DVR OEM Product Manual REV 1.0 Value Definition Spinpoint M8-DVR OEM Product Manual REV 1.0 Spinpoint M8-DVR OEM Product Manual REV 1.0 8.2.40 Write Long (3 2h) Page CHAPTER 9 MAINTENANCE 9.1 General Information 9.2 Maintenance Precautions Page