U8 Family Product Manual, Rev. B | 29 |
4 Ultra DMA mode 4 is supported.
8Ultra DMA mode 0 is currently active.
9Ultra DMA mode 1 is currently active.
10Ultra DMA mode 2 is currently active.
11Ultra DMA mode 3 is currently active.
12Ultra DMA mode 4 is currently active.
Bit Word 93
131=80-conductor cable detected, CBLID above VIH 0=40-conductor cable detected, CBLID below VIL
3.1.3Set Features command
This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the Features register are defined as follows:
02H | Enable write cache (default). |
03H | Set transfer mode (based on value in Sector Count register). |
| Sector Count register values: |
| 00H | Set PIO mode to default (PIO mode 2). |
| 01H | Set PIO mode to default and disable IORDY |
| | (PIO mode 2). |
| 08H | PIO mode 0 |
| 09H | PIO mode 1 |
| 0AH | PIO mode 2 |
| 0BH | PIO mode 3 |
| 0CH | PIO mode 4 (default) |
| 20H | Multiword DMA mode 0 |
| 21H | Multiword DMA mode 1 |
| 22H | Multiword DMA mode 2 |
U8 Family
ST317221A, ST313021A
ST38410A, ST34313A
Ultra ATA Interface Drives
U8 Family
ST317221A, ST313021A
ST38410A, ST34313A
Ultra ATA Interface Drives
Page
Contents
U8 Family Product Manual, Rev. B
Configuring and mounting the drive
ATA interface
Figures
U8 Family Product Manual, Rev. B
Introduction
Specification summary table
Drive Specification
ST317221A
ST313021A
ST317221A
0 to 60C op., -40 to 70C nonop
Drive Specification
1.0 Drive specifications
1.1.1 Default logical geometry
1.1 Formatted capacity
1.2 Physical organization
1.4 Physical characteristics
Drive Specification
1.3 Recording and interface technology
1.5 Seek time
1.7 Power specifications
1.7.1 Power consumption
Spinup power
1.6 Start/stop times
Read/Write power and current
Operating power and current
Idle mode power
Seek Mode
Power Mode
1.7.1.1 Typical current profile
Typical Watts
Typical Amps RMS
1.7.4 Power-management modes
Power Modes
1.7.2 Conducted noise
1.7.3 Voltage tolerance
Idle and Standby timers
1.8 Environmental tolerances 1.8.1 Ambient temperature
1.8.2 Temperature gradient
Sleep mode
1.8.3 Humidity
1.8.6.1 Operating vibration
1.8.6.2 Nonoperating vibration
1.9 Drive acoustics
1.12 Agency certification 1.12.1 Safety certification
1.10 Electromagnetic susceptibility
1.11 Reliability
1.12.2 Electromagnetic compatibility
1.12.3 FCC verification
Australian CE-Tick N176
U8 Family Product Manual, Rev. B
2.0 Configuring and mounting the drive
2.1 Handling and static-discharge precautions
2.2 Jumper settings 2.2.1 Master/slave configuration
7 5 3 8 6 4
Options jumper block J8 Master or single drive Drive is slave
Cable select
2.2.2 Cable-select option
2.2.3 Ultra ATA/66 cable
2.3 Drive mounting
Figure 3. Mounting dimensions-top, side and end view
Note Dimensions are shown in inches mm
3.0 ATA interface
3.1 ATA interface signals and connector pins
Figure 4. I/O pins and supported ATA signals
Signal name
Host pin # and signal description
Drive pin #
3.1.1 Supported ATA commands
Command name
Command code in hex
ATA-standard commands
3.1.2 Identify Drive command
Command code in hex
Word
Description
x.xx
Value
xxxxH
xx07H
xx1FH
xxA5H
Description if bit is set to Bit Word
Bit Word
3.1.3 Set Features command
Set transfer mode based on value in Sector Count register
3.1.4 S.M.A.R.T. commands
Code in Features
S.M.A.R.T. Command
Register
Code in Features
Page
Page
Seagate Technology, Inc
920 Disc Drive, Scotts Valley, California 95066, USA
Publication Number SG35226-001, Rev. B, Printed in USA