Conner Peripherals, Inc. CP30174E Intelligent Disk Drive Product Manual Revision I.3 April, 1992 3081 Zanker Road San Jose, CA 95134-2128 (408) 456-4500 Notice Conner Peripherals makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Conner Peripherals shall not be liable for errors contained herein or for incidental consequential damages in connection with the furnishing, performance, or use of this material. Conner Peripherals, Inc. reserves the right to change, without notification, the specifications contained in this manual. Copyright Conner Peripherals, Inc. No part of this publication may be reproduced or translated into any language in any form without the written permission of Conner Peripherals, Inc. IBM, PC/AT and PC/XT are registered trademarks of International Business Machines Corporation. 1.0 Introduction This manual describes the key features, specification summary, physical characteristics, environmental characteristics, functional description, electrical 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/ATŪ 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 1:1 The 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 Volt Noise 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.C Non-operating -40 deg. C to 60 deg.C Thermal Gradient 20 deg.C per hour max. Humidity: Operating 8% to 80% non-condensing Non-operating 8% to 80% non-condensing Maximum Wet Bulb 30 deg.C per hour maximum Altitude (relative to sea level) Operating -200 to 10,000 feet Non-operating (maximum) 40,000 feet 4.1 Reliability And Maintenance MTBF 150,000 hours (POH)1 MTTR 10 minutes typical Preventive Maintenance None Component Design Life 5 years Data Reliablity <1 non-recoverable error in 1013 bits read 4.2 Shock and Vibration Shock 1/2 sine pulse, 11 millisecond duration Vibration Swept sine, 1 octave per minute Non-operating shock 100G's Non-operating vibration 5-62 HZ (1/2 oct/min) 0.100 inch displacement (double amplitude) 63-400 Hz (1/2 oct/min) 5 G's peak Operating Shock 10 G's (without non-recoverable errors) Operating Vibration 5-27 Hz 0.100 inch displacement (double amplitude) 28-400 Hz .5 G's (without non-recoverable error) 4.3 Magnetic Field The disk drive will meet its specified performance while operating in the presence of an externally produced magnetic field under the following conditions: Frequency Field Intensity 0 to 700Khz 6 gauss maximum 700Khz to 1.5Mhz 1 gauss maximum 4.4 Acoustic Noise The sound pressure level will not exceed 42 dBA in any mode at a distance of 1 meter from the drive. 4.5 Safety Standards Conner Peripherals disk drives are designed to comply with relevant product safety standards such as: o UL 478, 5th edition, Standard for Safety of Information Processing and Business Equipment, and UL 1950, Standard for Safety of Information Technology Equipment o CSA 22.2 #154, Data Processing Equipment and CSA 22.2 #220, Information Processing and Business Equipment. CSA 22.2 #950, Safety of Information Technology Equipment. o IEC 435 Safety Requirements for Data Processing Equipment, IEC 380, Safety of Electrically Energized Office Machines, and IEC 950, Safety of Information Technology Equipment Including Electrical Business Equipment. o VDE 0805 Equivalent to IEC 435, VDE 0805 TIEL 100, Equivalent to IEC 950, and VDE 0806, Equivalent to IEC 380. o TUV Essen TUV Rheinland 5.0 Functional Description The drive contains all necessary mechanical and electronic parts to interpret control signals, position the recording heads over the desired track, read and write data, and provide a contaminant free environment for the heads and disks. 5.1 Read/Write and Control Electronics One integrated circuit is mounted within the sealed enclosure in close proximity to the read/write heads. Its function is to provide head selection, read pre-amplification, and write drive circuitry. The single microprocessor-controlled circuit card provides the remaining electronic functions which include: o Read/Write Circuitry o Rotary Actuator Control o Interface Control o Spin Speed Control o Dynamic Braking o Power Management At power down the heads are automatically retracted to the inner diameter of the disk and are latched and parked on a landing zone that is inside the data tracks. 5.2 Drive Mechanism A brushless DC direct drive motor rotates the spindle at 3833 RPM. The motor/spindle assembly is dynamically balanced to provide minimal mechanical runout to the disks. A dynamic brake is used to provide a fast stop to the spindle motor and return the heads to the landing zone when power is removed. 5.3 Air Filtration System The head-disk assembly is a sealed enclosure with an integral 0.3 micron filter which maintains a clean environment for the heads and disks. 5.4 Head Positioning Mechanism The read/write heads are supported by a mechanism coupled to a rotary voice coil actuator. 5.5 Read/Write Heads and Disks Data is recorded on 95mm diameter disks through 3370 type heads. 5.6 Error Correction The drive uses a Reed-Solomon code to perform error detection and correction. The software error correction polynomial is capable of correcting one error burst with a maximum of 22 bits or 2 error bursts of up to 11 bits each, per 512 byte block. Single bursts of 11 bits or less are corrected on the fly (EOF) with no performance degradation. 5.7 Master/Slave Configuration The drive is designed to operate either as a Master Drive (C Drive) or a Slave Drive (D Drive). This feature is dependent on two drive settings; the status of hardware Jumper M/S and the firmware setting of a feature bit. When (M/S) is closed the drive will assume the role of a Master Drive. When (M/S) is open the drive will act as the Slave. In single drive configurations M/S must remain in the closed position. The feature word bit 8 determines if the drive will act according to ATA/CAM or ISA/Conner protocol during master/slave detection. When two drives are daisy chained on the interface, commands are written in parallel to both drives, only the selected drive will execute the command, except for the diagnostic command. In that case, both drives execute the command and the slave reports its status to the master via the -HOST-PDIAG signal. Drives are selected by the DRV bit in the drive/head Register and by a jumper, on the drive designating it as either a master or slave. When the DRV bit is reset, the master drive is selected, and when the DRV bit is set, the slave drive is selected. When drives are daisy chained, one must be jumpered as the master and one as the slave. When a single drive is attached to the interface, it must be jumpered as the master. Throughout this document, drive selection always refers to the state of the DRV bit, and position of the master/slave jumper. 6.0 Electrical Description 6.1 Power Connectors The drive has two power connectors; a standard 4 pin DC power connector and a smaller 3 pin connector. Power must only be supplied at one source. The mating connector for the 4 pin connector is AMP 1-480424-0 (Housing) and AMP 60619-4 (loose piece) or 61117-4 (strip) contacts. The following table describes the 4 pin power connector pins: Pin Signal 1 +12V 2 GND 3 GND 4 +5V The mating connector for the three pin connector is Molex series 54-84 Header, housing Molex part number 39-01-0033 and terminal part number 39-00-0031 (loose) or 39-00-0023 (strip). The following table describes the 3 pin power connector pins. Pin Signal 1 +5V 2 +12V 3 GND 7.0 Host Interface 7.1 Description The interface between the drive adapter and the drive is called the Host Interface. The set of registers in the I/O space of the Host controlled through the Host Interface is known as the Task File. The physical interface from the drive to the host is implemented using a 40 pin connector. The pin descriptions follow. 7.2 Interface Connector The recommended mating connector is Molex P/N 15-47-3401 or equivalent. Two drives may be daisy chained on this connector, and the maximum cable length is 18 inches. 7.3 Signal Levels All signal levels are TTL compatible. A logic "1" is > 2.0 Volts. A logic "0" is from 0.00 Volts to .70 Volts. The drive capability of each of the inbound signals is described below. 7.4 Signal Conventions All signals on the Host Interface shall have the prefix HOST. All negatively active signals shall be further prefixed with a "-" designation. All positive active signals shall be prefixed with a '+' designation. Signals whose source are the Host, are said to be "outbound" and those whose source is the drive, are said to be "inbound". These are the standard pin designators for the ISA/Conner architecture. Signal Name Dir Pin Description -HOST RESET O 01 Reset signal from the Host system which is active low during power up and inactive thereafter. GND O 2 Ground between drive and Host. +HOST DATA I/O 3-18 16 bit bi-directional data bus 0-15 between the host and the drive. The lower 8 bits, HD0- HD7, are used for register & ECC access. All 16 bits are used for data transfers. These are tri-state lines with 24 mA drive capability. GND O 19 Ground between drive and Host. KEY N/C 20 An unused pin clipped on the drive and plugged on the cable. Used to guarantee correct orientation of the cable. RESERVED O 21,27,28,29 GND O 22 Ground between drive and host. -HOST IOW O 23 Write strobe, the rising edge of which clocks data from the host data bus, HD0 through HD15, into a register or the data register of the drive. GND O 24 Ground between drive and host. -HOST READ IOR O 25 Read strobe, which when low enables data from a register or the data register of the drive onto the host data bus, HD0 through HD15. The rising edge of -HOST IOR latches data from the drive at the host. GND O 26 Ground between drive and Host. GND O 30 Ground between drive and host. +HOST IRQ14 I 31 Interrupt to the Host system, enabled only when the drive is selected, and the host activates the -IEN bit in the Digital Output register. When the -IEN bit is inactive, or the drive is not selected, this output in a high impedance state, regardless of the state of the IRQ bit. The interrupt is set when the IRQ bit is set by the drive CPU. IRQ is reset to zero by a Host read of the Status register or a write to the command register. This signal is a tri-state line with 8 ma drive capacity. -HOST IO16 I 32 Indication to the Host system that the 16 bit data register has been addressed and that the drive is prepared to send or receive a 16 bit data word. This line is tri-state line with 24 mA drive capacity. -HOST PDIAG I 34 ISA - At POR-PDIAG will be activated by the slave within 1 ms. If the master doesn't see -PDIAG active after 4 ms it will assume no slave is present. -PDIAG will remain active until the slave is ready to go not busy or 14.0 seconds on a power on reset. The master will wait 14.5 seconds or until the slave de-activates -PDIAG on power on reset before it goes not busy. The slave will de-activate -PDIAG and go not busy, if it is not ready after the 14.0 seconds. Neither drive will set ready or seek complete until they have reached full spin speed and are ready to read/write. During a software reset, -PDIAG will be activated by the slave within 1 ms. If the master doesn't see -PDIAG active after 4 ms it will assume no slave is present. The slave will not de-activate -PDIAG until it is ready to go not busy or 400 ms. The master will only wait 450 milliseconds or until the slave de-activates -PDIAG before it goes not busy. The slave will only wait 450 milliseconds before it activates -PDIAG and goes not busy. The slave will not set ready or seek complete until those states are achieved. After reset, -PDIAG will be used for the diagnostic command in the following manner. It is output by the drive if it is the slave drive, input to the drive if it is the master drive. This low true signal indicates to a master that the slave has passed its internal diagnostic command. This line is only inactive high during execution of the diagnostic command. -HOST PDIAG I 34 CAM - DASP- (Drive Active/Drive 1 Present) This is a time-multiplexed signal which indicates that a drive is active, or that Drive 1 is present. This signal shall be an open collector output and each drive shall have a 10K ohm pull-up resistor. During power on initialization or after RESET- is negated, DASP- shall be asserted by Drive 1 within 400 ms to indicate that Drive 1 is present. Drive 0 shall allow up to 450 ms for Drive 1 to assert DASP-. If Drive 1 is not present, Drive 0 may assert DASP- to drive an activity LED. DASP- shall be negated following acceptance of the first valid command by Drive 1 or after 31 seconds, whichever comes first. Any time after negation of DASP-, either drive may assert DASP- to indicate that a drive is active. +HOST A0,A1,A2 O 35-33- Bit binary coded address used to 36 select the individual registers in the task file. -HOST CS0 O 37 Chip select decoded from the host address bus. Used to select some of the Host accessible registers. -HOST CS1 O 38 Chip select decoded from the Host address bus. Used to select three of the registers in the Task File. -SPIN SYNC/ACT I 39 Signal from the drive used either to drive an active LED whenever the disk is being accessed or as an indication of a second drive present. (See the Customer Options section for further information). GND O 40 Ground between drive and host. 7.5 Auxiliary Connector The Auxiliary connector is used to provide optional signals at the front of the drive. No connection should be made to the pins marked RESERVED. These pins are reserved for factory test purposes and improper connection may adversely affect the drive. Pin Signal Pin Signal 01 GND 02 Reserved 03 +LED 04 -LED 05 KEY 06 KEY 07 Reserved 08 Reserved 09 Reserved 10 Reserved 11 Reserved 12 Reserved 13 Reserved 14 Reserved 15 Reserved 16 Reserved The signal names for the ATA/CAM architecture are: 21 DMARQ 27 -IOCHRDY 28 Spindle Sync 8 Cable Select 29 DMA ACK 39 -DASP