U8 Family Product Manual, Rev. B | 19 |
2.2.2 Cable-select option
Computers that use cable-select determine the master and slave drives by selecting or deselecting pin 28, CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To enable cable select, set a jumper on pins 5 and 6 as shown in Figure
2.Refer to your computer manual to determine whether your computer supports this option.
2.2.3 Ultra ATA/66 cable
An 80-conductor 40-pin cable is required to run Ultra DMA mode 3 and
4.This cable uses even-numbered conductors connected to the ground pins to improve signal integrity.
Note. The drive supports both host and drive cable detection. The host detects the 80-conductor cable by sampling pin 34, CBLID–, on the interface bus. The drive detects the 80-conductor cable by sensing a capacitor at the host side through the CBLID– signal. The result is reported in a Fast Rise Detected bit (bit 13 of word 93 in the Identify drive parameter block).
2.3 Drive mounting
You can mount the drive in any orientation using four screws in the side- mounting holes or four screws in the bottom-mounting holes. See Figure 4 on page 20 for drive mounting dimensions. Follow these important mounting precautions when mounting the drive:
•Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.
•Use only 6-32 UNC mounting screws.
•The screws should be inserted no more than 0.20 inch (5.08 mm) into the bottom mounting holes and no more than 0.14 inch (3.55 mm) into the side mounting holes.
•Do not overtighten the mounting screws (maximum torque: 6 inch-lb).
•Do not use a drive interface cable that is more than 18 inches long.
ST38410A, ST34313A
U8 Family
ST317221A, ST313021A
Ultra ATA Interface Drives
ST38410A, ST34313A
U8 Family
ST317221A, ST313021A
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
ST317221A
Specification summary table
Drive Specification
ST313021A
ST317221A
0 to 60C op., -40 to 70C nonop
ST313021A
1.1 Formatted capacity
1.0 Drive specifications
1.1.1 Default logical geometry
1.2 Physical organization
1.3 Recording and interface technology
1.4 Physical characteristics
Drive Specification
1.5 Seek time
Spinup power
1.7 Power specifications
1.7.1 Power consumption
1.6 Start/stop times
Idle mode power
Read/Write power and current
Operating power and current
Seek Mode
Typical Watts
Power Mode
1.7.1.1 Typical current profile
Typical Amps RMS
1.7.2 Conducted noise
1.7.4 Power-management modes
Power Modes
1.7.3 Voltage tolerance
1.8.2 Temperature gradient
Idle and Standby timers
1.8 Environmental tolerances 1.8.1 Ambient temperature
Sleep mode
1.8.3 Humidity
1.9 Drive acoustics
1.8.6.1 Operating vibration
1.8.6.2 Nonoperating vibration
1.11 Reliability
1.12 Agency certification 1.12.1 Safety certification
1.10 Electromagnetic susceptibility
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
Options jumper block J8 Master or single drive Drive is slave
2.2 Jumper settings 2.2.1 Master/slave configuration
7 5 3 8 6 4
Cable select
2.3 Drive mounting
2.2.2 Cable-select option
2.2.3 Ultra ATA/66 cable
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
Host pin # and signal description
Figure 4. I/O pins and supported ATA signals
Signal name
Drive pin #
Command code in hex
3.1.1 Supported ATA commands
Command name
ATA-standard commands
3.1.2 Identify Drive command
Command code in hex
x.xx
Word
Description
Value
xxxxH
xx07H
xx1FH
Bit Word
xxA5H
Description if bit is set to Bit Word
3.1.3 Set Features command
Set transfer mode based on value in Sector Count register
S.M.A.R.T. Command
3.1.4 S.M.A.R.T. commands
Code in Features
Register
Code in Features
Page
Page
Publication Number SG35226-001, Rev. B, Printed in USA
Seagate Technology, Inc
920 Disc Drive, Scotts Valley, California 95066, USA