interface, and error reporting for Conner Peripherals
CP30174E drive.
2.0 Key Features
The CP30174E Jaguar is a high performance 3.5 inch
low-profile (1.0 inch high) 170 megabyte (formatted)
disk drive with 17 ms average seek time that is designed
to operate on an IBM PC/AT« or equivalent in translate mode.
The drive features low power requirements and high shock
resistance, enabling battery operation in portable environments.
Because the drive contains the Task File within its control
logic, it requires a simplified adapter board to operate.
o 170 Mbyte capacity.
o Low power requirements enabling battery operation
in portable environments.
o High performance rotary voice coil actuator with
embedded servo system.
o One of seven run length limited code.
o High shock resistance.
o Sealed HDA.
o Automatic actuator latch against inner stop upon
power down.
o Microprocessor-controlled diagnostic routines
that are automatically executed at start-up.
o Automatic error correction and retries, ECC on the fly.
o 512 byte block size, 64K buffer.
o Emulates IBM Task File and supports additional commands.
o Up to two drives may be daisy-chained on the AT interface.
o Auto Translate mode for AT is supported.
o 4 Byte ECC diagnostic check in write/read.
o Master/Slave option, either CAM or Conner compatable.
o Automatic read look ahead.
3.0 Specification Summary
3.1 Capacity
Formatted 170 Mbytes
3.2 Physical Configuration
Disk Type Thin film Head Type MIG Actuator Type Rotary Voice-Coil
Number of Disks 2 Data Surfaces 4
Data Heads 4 Servo Embedded Tracks per Surface 1806 Track Density (TPI) 2150 TPI Formatted Track Cap. 23,552 bytes Bytes per Block 512 Blocks per Drive 332,304 Sectors per Track 46
3.3 Performance
Seek Times
Track to Track: 3.0 ms
Average: 17.0 ms Maximum: 30.0 ms
Average Latency 7.8 ms Rotation Speed 3833 RPM Data Transfer Rate 2.0 Mbyte/sec Start Time(Power Up)
typical: 10 seconds
maximum: 20 seconds Stop Time (Power Down)
typical: 7 seconds
maximum: 15 seconds
Interleave 1:1The timing is measured through the interface with the
drive operating at nominal DC input voltage and nominal
operating temperature. The timing also assumes that:
- Bios and PC system hardware dependency have
been subtracted from timing measurements.
- The drive is operated using it's native drive
paramenters.
- The controller overhead, measured through the
interface, is the time it takes to start a seek
after the drive has been selected.
The average seek time is determined by averaging the seek
time for a minimum of 1000 seeks of random length over the
surface of the disk. These numbers assume spin recovery is
not invoked.If spin recovery is invoked, the maximum could
be 40 seconds. Briefly removing power can lead to spin
recovery being invoked.
3.4 Read/Write
Interface Task File Recording Method 1 of 7 RLL code Recording Density (ID) 42,173 bits per inch Flux Density (ID) 31,630 flux reversals per
inch
3.5 Power Requirements (Typical)
+5V DC +12V DC Power
Read/Write Mode 390 ma 140 ma 3.75 W Seek Mode 200 ma 230 ma 3.75 W Idle Mode 200 ma 120 ma 2.50 W Standby Mode 130 ma 10 ma 0.75 W Sleep Mode 130 ma 10 ma 0.75 W Spin-up Mode 420 ma 1100 ma n/a
Read/Write Mode occurs when data is being read from or
written to the disk.
Seek Mode occurs while the actuator is in motion.
Idle Mode occurs when the drive is not reading, writing
or seeking. The motor is up to speed and DRIVE READY
condition exists. Actuator is residing on last accessed track.
Standby Mode occurs when the motor is stopped and actuator
is parked. STANDBY MODE may occur after a programmable
time-out since last host occurs. The drive will leave
STANDBY MODE upon receipt of a command which requires disk
access or upon receipt of a spin up command.
Sleep Mode occurs when all electronics are disabled.
The Host is required to issue a RESET to exit the SLEEP MODE.
Spin-Up Mode current draw is for 7 seconds maximum.
Maximum noise allowed (DC to 1 MHZ, with equivalent resistive load):
Voltage +5 Volt +12 VoltNoise 2% 1%3.6 Physical Characteristics
Dimensions: 1.00" x 4.00" x 5.75"
Weight: 1.3 pounds
4.0 Environmental Characteristics
Temperature:
Operating 5 deg. C to 55 deg.CNon-operating -40 deg. C to 60 deg.CThermal Gradient 20 deg.C per hour max.
Humidity:
Operating 8% to 80% non-condensingNon-operating 8% to 80% non-condensingMaximum Wet Bulb 30 deg.C per hour maximumAltitude (relative to sea level)
Operating -200 to 10,000 feetNon-operating (maximum) 40,000 feet