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Samsung 3.5" hard disk drives, spinpoint v40 6.7.4 Ultra DMA data transfer ,

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DISK DRIVE OPERATION

SpinPoint V40 Product Manual

6.7.4 Ultra DMA data transfer

Figures 6-4 through 6-13 define the timings associated with all phases of Ul t r a DMA bursts.

Table 6-19 contains the values for the timings for each of the Ultra DMA modes.

6.7.4.1 Initiating an Ultra DMA data in burst

The values for the timings for each of the Ultra DMA modes are contained in 6.7.4.2.

DMARQ

(device)

DMACK-

(host)

STOP

(host)

HDMARDY-

(host)

DSTROBE

(device)

DD(15:0)

tZAD

DA0, DA1, DA2,

CS0-, CS1-

tUI

tZAD

tACK

tENV

tZIORDY

tFS

tDVS

tAZ tDVH

tACK

NOTE − The definitions for the STOP, HDMARDY and DSTROBE signal lines are not in

effect until DMARQ and DMACK are asserted.

Figure 6-4 Initiating an Ultra DMA data in burst

Contents

Main Page SpinPoint V40 Product Manual iii Page SpinPoint V40 Product Manual v TABLE OF TABLES SpinPoint V40 Product Manual Page SpinPoint V40 Product Manual 1 CHAPTER 1 SCOPE 1.1 User Definition 1.2 Manual Organization 1.3 Terminology and Conventions SpinPoint V40 Product Manual 3 1.4 Reference CHAPTER 2 DESCRIPTION 2.1 Introduction 2.2 Key Features SpinPoint V40 Product Manual 5 2.3 Standards and Regulations 2.4 Hardware Requirements CHAPTER 3 SPECIFICATIONS 3.1 Specification Summary SpinPoint V40 Product Manual 7 3.2 Physical Specifications 3.3 Logical Configurations 3.4 Performance Specifications SpinPoint V40 Product Manual 9 3.5 Power Requirements 3.6 Environmental Specifications SpinPoint V40 Product Manual 11 3.7 Reliability Specifications CHAPTER 4 INSTALLATION 4.1 Space Requirements SpinPoint V40 Product Manual 13 4.2 Unpacking Instructions 4.3 Mounting 4.3.1 Orientation Page 4.3.2 Clearance 4.3.3 Ventilation 4.4 Cable Connectors 4.4.1 DC Power Connector 4.4.2 AT-Bus Interface Connector SpinPoint V40 Product Manual 17 4.5 Jumper Block Configurations SpinPoint V40 Product Manual 19 4.6 Drive Installation SpinPoint V40 Product Manual 21 4.7 System Startup Procedure 4.7.1 Drive Installation to Access the Full Capacity Using 32GB Clip SpinPoint V40 Product Manual 23 CHAPTER 5 DISK DRIVE OPERATION 5.1 Head / Disk Assembly (HDA) 5.1.1 Base Casting Assembly 5.1.2 DC Spindle Motor Assembly Page SpinPoint V40 Product Manual 25 5.1.3 Disk Stack Assembly 5.1.4 Head Stack Assembly 5.1.5 Voice Coil Motor and Actuator Latch Assemblies 5.1.6 Air Filtration System 5.2 Drive Electronics 5.2.1 Digital Signal Process and Interface Controller 5.2.2 AT Disk Controller SpinPoint V40 Product Manual 27 Page SpinPoint V40 Product Manual 29 Page SpinPoint V40 Product Manual 31 5.2.3 Read/Write IC SpinPoint V40 Product Manual SpinPoint V40 Product Manual 33 5.3 Servo System 5.4 Read and Write Operations 5.4.1 The Read Channel SpinPoint V40 Product Manual 35 5.4.2 The Write Channel 5.5 Firmware Features 5.5.1 Read Caching 5.5.2 Write Caching SpinPoint V40 Product Manual 37 5.5.3 Defect Management 5.5.4 Automatic Defect Allocation 5.5.5 Multi-burst ECC Correction 5.5.6 SMART 5.5.7 AAM SpinPoint V40 Product Manual 39 CHAPTER 6 AT INTERFACE AND ATA COMMANDS 6.1 Introduction 6.2 Physical Interface 6.2.1 Signal Conventions 6.2.2 Signal Summary 6.2.3 Signal Descriptions SpinPoint V40 Product Manual 41 Page SpinPoint V40 Product Manual 43 Page SpinPoint V40 Product Manual 45 6.3 Logical Interface 6.3.1 General SpinPoint V40 Product Manual 47 6.3.2 I/O Register - Address SpinPoint V40 Product Manual 49 6.3.3 Control Block Register Descriptions 6.3.4 Command Block Register Descriptions SpinPoint V40 Product Manual 51 Page SpinPoint V40 Product Manual 53 6.4 At Command Register Descriptions Page SpinPoint V40 Product Manual 55 6.4.1 Check Power Mode (98h, E5h) 6.4.2 Download Micro Code (92h) 6.4.3 Execute Device Diagnostics (90h) SpinPoint V40 Product Manual 57 6.4.4 Flush Cache (E7h) 6.4.5 Format Track (50h) 6.4.6 Identify Device (ECh) Page SpinPoint V40 Product Manual 59 Page SpinPoint V40 Product Manual 61 6.4.7 Idle (97h,E3h) 6.4.8 Idle Immediate (95h,E1h) 6.4.9 Initialize Device Parameters (91h) SpinPoint V40 Product Manual 63 6.4.10 Read Buffer (E4h) 6.4.11 Read DMA (C8h:with retry, C9h:without retry) 6.4.12 Read Long (22h:with retry, 23h: without retry) 6.4.13 Read Multiple Command (C4h) SpinPoint V40 Product Manual 65 6.4.14 Read Native Max Address (F8h) 6.4.15 Read Sector(s) (20h:with retry, 21h:without retry) 6.4.16 Read Verify Sector(s) (40h:with retry, 41h:without retry) 6.4.17 Recalibrate (1xh) 6.4.18 Seek (7xh) SpinPoint V40 Product Manual 67 6.4.19 Set Features (EFh) 6.4.20 Set Max Address (F9h) SpinPoint V40 Product Manual 69 6.4.21 Set Multiple Mode (C6h) 6.4.22 Sleep (99h, E6h) SpinPoint V40 Product Manual 71 6.4.23 Standby (96h,E2h) 6.4.24 SMART (B0h) Page SpinPoint V40 Product Manual 73 Page SpinPoint V40 Product Manual 75 6.4.25 Standby (96h, E2h) 6.4.26 Standby Immediate (94h, E0h) 6.4.27 Write Buffer (E8h) 6.4.28 Write Long (32h:with retry, 33h:without retry) 6.4.29 Write DMA (CAh) 6.4.30 Write Multiple Command (C5h) 6.4.31 Write Sector(s) (30h:with retry, 31h:without retry) Page SpinPoint V40 Product Manual 79 6.5 Programming Requirements 6.5.1 Reset Response 6.5.2 Error Posting Page SpinPoint V40 Product Manual 81 6.5.3 Power Conditions Page SpinPoint V40 Product Manual 83 6.6 Protocol Overview 6.6.1 PIO Data in Commands 6.6.2 PIO Data Out Commands SpinPoint V40 Product Manual 85 6.6.3 Non-Data Commands SpinPoint V40 Product Manual 87 6.6.4 DMA Data Transfer Commands SpinPoint V40 Product Manual 89 6.7 Timing 6.7.1 Register transfers DISK DRIVE OPERATION 90 SpinPoint V40 Product Manual Figure 6-1 Register transfer to/from device 6.7.2 PIO data transfers DISK DRIVE OPERATION 92 SpinPoint V40 Product Manual Figure 6-2 PIO data transfer to/from device SpinPoint V40 Product Manual 93 DISK DRIVE OPERATION 94 SpinPoint V40 Product Manual 6.7.3 Multiword DMA data transfer Figure 6-3 Multiword DMA data transfer SpinPoint V40 Product Manual 95 6.7.4 Ultra DMA data transfer SpinPoint V40 Product Manual 97 Page SpinPoint V40 Product Manual 99 Page SpinPoint V40 Product Manual 101 SpinPoint V40 Product Manual 103 Page SpinPoint V40 Product Manual 105 Page SpinPoint V40 Product Manual 107 CHAPTER 7 MAINTENANCE 7.1 General Information 7.2 Maintenance Precautions 7.3 Service And Repair