8.2.40 Write Long (32h)
This command is obsolete in the ATA7 specification. The supporting of this command is for backward compatibility purpose. The use of this command is beyond the ATA standard and not recommended by the manufacturer.
This command is similar to the Write Sectors command, except that it writes the data and the ECC bytes directly from the sector buffer; the drive does not generate the ECC bytes itself. Only single sector Write Long operations are supported. The transfer of the ECC bytes shall be 8 bits wide and 4 or device native ECC bytes length.
8.2.41 Write Multiple Command (C5h, 39h: extended)
This command is similar to the Write Sectors command. Interrupts are not presented on each sector but on the transfer of a block which contains the number of sectors defined by Set Multiple.
Command execution is identical to the Write Sectors operation, except that the numbers of sectors defined by the Set Multiple command are transferred without intervening interrupts. DRQ qualification of the transfer is required only at the start of the data block, not on each sector.
The block count of sectors to be transferred without intervening interrupts is programmed by the Set Multiple Mode command, which shall be executed prior to the Read Multiple command.
When the Write Multiple command is issued, the Sector Count register contains the number of sectors (not the number of blocks or the block count) requested.
If the number of requested sectors is not evenly divisible by the block count, as many full blocks as possible are transferred, followed by a final, partial block transfer. The partial block transfer is for n sectors, where
n = Remainder (Sector Count / Block Count)
If the Write Multiple command is attempted before the Set Multiple Mode command has been executed, or when Write Multiple commands are disabled, the Write Multiple operation is rejected with an aborted command error.
Disk errors encountered during execution of Write Multiple commands are posted after the attempted disk write of the block. Interrupts are generated when DRQ is set at the beginning of each block or partial block.
The contents of the Command Block registers, following the transfer of a data block which had a sector in error, are undefined. The host should retry the transfer as individual requests to obtain valid error information.
8.2.42Write Sector(s) (30h, 34h: extended)
This command writes from 1 to 256 sectors, as specified in the Sector Count register (a sector count of zero requests 256 sectors), beginning at the specified sector. Refer to Section 6.7 for the DRQ, IRQ and BSY protocol on data transfers.
If the drive is not already on the desired track, an implied seek is performed. Once at the desired track, the drive searches for the appropriate ID field.
Spinpoint M8-DVR Disti Product Manual REV 2.0 | 73 |
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