5.2 Drive Electronics
The Spinpoint M8 hard disk drive attains its intelligence and performance through the specialized electronic components mounted on the PCBA. The components are mounted on one side of the PCBA.
The Preamplifier IC is the only electrical component that is not on the PCBA. It is mounted on the flexible circuit inside the HDA. Locating the Preamplifier IC as close as possible to the read/write heads via surface mount technology improves the signal to noise ratio.
5.2.1Digital Signal Process and Interface Controller
The DSP core controller has a dual ARM CPU that incorporates a true 32-bit digital signal processor (DSP), a bus controller unit (BCU), an interrupt controller unit (ICU), a general purpose timer (GPT), and SRAM.
5.2.2Disk Controller
The AT disk controller works in conjunction with the DSP core to perform the ATA interface control, buffer data flow management, disk format/read/write control, and error correction functions of an embedded disk drive controller. The DSP communicates with the disk controller module by reading from and writing to its various internal registers.
To the DSP core, the registers of the disk controller appear as unique memory or I/O locations that are randomly accessed and operated upon. By reading from and writing to the registers, the DSP core initiates operations and examines the status of the different functional blocks. Once an operation is started, successful completion or an error condition may cause the disk controller to interrupt the DSP core, which then examines the status registers of the disk controller and determines an appropriate course of action. The local DSP core may also poll the device to ascertain successful completion or error conditions.
Figure 5-2 illustrates the relationships between the various blocks within the AT disk controller. These blocks will be referred to throughout this document.
Spinpoint M8-DVR Disti Product Manual REV 2.0 | 25 |
M8-DVR Product Manual
Page
Table of Contents
Smart APM
Read Fpdma Queued 60h Read Log Extended 2Fh Read Long 22h
Table of Tables
User Definition
Scope
Manual Organization
Reference
Sata
Introduction
Description
Key Features
Hardware Requirements
Standards and Regulations
Specification Summary
Specifications
Physical dimensions
Physical Specifications
Logical Configurations
Physical Specifications
Performance Specifications
Rated
Power consumption
Power consumption
Power Requirements
Rotational Shock
Environmental Specifications
Environmental Specifications
Linear Shock 1/2 sine pulse
1Measurement Position
Annualized Failure Rate AFR
Reliability Specifications
Space Requirements
Installation
Mounting
Unpacking Instructions
Orientation
Mounting Dimensions
Ventilation
Cable Connectors
Sata Connectivity
Computer mainboard Serial ATA
Management
Power
HDD Power, Sata Interface, and Factory Jumper Connector
SATA-Bus Interface Connector
Pin Locations on the Drive Pcba
DC Power Connector and SATA-Bus Interface Cable Connections
Drive Installation
Disk Drive Operation
Head / Disk Assembly HDA
Base Casting Assembly
DC Spindle Motor Assembly
CoverAssembly
Air Filtration System
Disk Stack Assembly
Head Stack Assembly
Voice Coil Motor and Actuator Latch Assemblies
Drive Electronics
Digital Signal Process and Interface Controller
Disk Controller
DDR
Buffer Control Block
Host Interface Control Block
Disk Ldpc Control Block
Disk Control Block
Frequency Synthesizer
Automatic Gain Control
Power Management
Read/Write IC
Time Base Generator
Analog to Digital Converter ADC and FIR
Analog Anti-Aliasing Low Pass Filter
Read and Write Operations
Servo System
Read Channel
Write Channel
Firmware Features
Read Caching
Write Caching
6 APM
Defect Management
Automatic Defect Allocation
Smart
Sata Terminology
Sata II Interface
Spinpoint M8-DVR Disti Product Manual REV
Signal Descriptions
Physical Interface Signal Summary
Registers
When read When written
2 I/O Register Address
Control Block Register Descriptions
Command Block Register Descriptions
Device Register Ex F6h
Command Register Ex F7h
Status Register Ex F7h
Auto-Activate in DMA Setup FIS
Sata II Feature SET
Device Activity Signal
Staggered Spin-up Disable Control
Phy. Event Counters
Sata Power Management
Software Settings Preservation
Command Table
ATA Command Descriptions
Command Code Parameters
Smart
Download Micro Code 92h
Command Descriptions
Check Power Mode E5h
Device Configuration Overlay B1h
Device Configuration Identify data structure Word Content
Format Track 50h
Execute Device Diagnostics 90h
Diagnostic Codes
Flush Cache E7h, EAh extended
Identify Device information
Content Description
=the fields reported in word 88 are valid
EXT
=Media Card Pass Through command feature set supported
WWN
Word Content Description
Idle E3h
Automatic Standby Timer Periods
Idle Immediate E1h
Read DMA C8h, 25h extended
Initialize Device Parameters 91h
NOP 00h
Read Buffer E4h
Read Log Extended 2Fh
Read Multiple Command C4h, 29h extended
Read Long 22h
Read Sectors 20h, 24h extended
Read Native Max Address F8h, 27h extended
Read Verify Sectors 40h, 41h extended
Security Erase Unit F4h
Security Disable Password F6h
Recalibrate 10h
Security Erase Prepare F3h
Security Freeze Lock F5h
Security Set Password F1h
Security Erase Unit Password
Security Set Password data content
Seek 7xh
Set Features EFh
Identifier Level Command result
Security Unlock F2h
12 Transfer Mode Values
11 Set Features Register Definitions
Sleep E6h
Set Multiple Mode C6h
13 Set Max Feature Register Values
Set Max Address F9h, 37h extended
Smart B0h
14 Smart Feature Registers Values
Smart disable operations D9h
Smart enable/disable attribute auto-save D2h
Smart execute off-line immediate D4h
Smart enable operations D8h
15 Device Smart Data Structure
Smart read data D0h
Byte
16 Smart Attribute Status Flags
Bit Name Description
18 Off-line Data Collection Status Values
17 Smart Attribute Data List
19 Self-test Execution Status Values
Self-test execution status byte
Smart return status DAh
Smart read log sector D5h
Smart write log sector D6h
Write Fpdma Queued 61h
Standby Immediate E0h
Write Buffer E8h
Write DMA CAh, 35h extended
Write Long 32h
Write Multiple Command C5h, 39h extended
Write Sectors 30h, 34h extended
Spinpoint M8-DVR Disti Product Manual REV
Maintenance Precautions
Maintenance
General Information
HDD handling guide -Please handle HDD by side surfaces
HDD handling guide Prevent Shocks
Service and Repair