C F S - 8 5 0 A ( 7 / 1 9 9 5 ) CONNER NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/SLIMLINE Cylinders | 1651| | Capacity form/unform 850/ MB Heads 4| 16| | Seek time / track 14.0/ 3.0 ms Sector/track | 63| | Controller IDE / ATA2 FAST/ENHA Precompensation Cache/Buffer 64 KB SEGMENTABLE Landing Zone Data transfer rate 3.000 MB/S int Bytes/Sector 512 16.600 MB/S ext DMA2 Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 5 55 | -40 60 Power: sleep 1.0 W Humidity % 8 80 | 8 80 standby 1.0 W Altitude km -0.061 3.048| -0.061 12.192 idle 3.5 W Shock g 5 | 75 seek 5.5 W Rotation RPM 3600 read/write 4.0 W Acoustic dBA 38 spin-up W ECC Bit ON THE FLY,REED SOLOMON MTBF h 300000 Warranty Month Lift/Lock/Park YES Certificates CSA,FCC,IEC380,IEC950,UL19... ********************************************************************** L A Y O U T ********************************************************************** CONNER CFS-635A/850A/1275A PRODUCT MANUAL 20401006-001 REV. A 7/95 +---------------------------------------------------------+ | +-+ | | | | | | | | |XXI | +-+ |XXN | |XXT | |XXE 40PIN | |XXR | |XXF | |XXA | |XXC ++-+C/D |XXE ++ | |XX ++ |C/S | 1 || | |XX ++-+ |XX Power +---------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** CONNER CFS-635A/850A/1275A PRODUCT MANUAL 20401006-001 REV. A 7/95 Jumper Setting ============== The C/D jumper is used to determine whether the drive is a master (drive C) or a slave (drive D). The drive is configured as a master, when jumpered, and a slave when not jumpered. Master/Standalone ----------------- C/D CS x o o C/D CLOSED X o o Slave ----- C/D CS o o o All OPEN o o o Cable Select Master or Slave ---------------------------- C/D CS o o x CS CLOSED Cable Select Option enabled o o X When using CS option, the C/D jumper MUST be open All other pins are reserved and should not be used. Master/Slave Configuration -------------------------- When two drives are daisy-chained on the host interface, one must be designated at the master drive (C: drive) and one as the slave drive (D: drive). Commands from the host are written in parallel to both drives. When the C/D jumper on the drive is closed, the drive will assume the role of a master. When C/D is open, the drive will act as a slave. In single-drive configurations, C/D must remain in the closed (master) position. For each command sent from the host, the DRV bit in the drive/head register selects the master or the slave drive. When the DRV bit is reset (0), the master drive is selected, and when the DRV bit is set (1), the slave drive is selected. Once the drives receive the command, only the drive with jumper C/D set to the appropriate position will execute the command. For example, if the DRV bit is set, only the slave drive (jumper C/D open) will execute the command. NOTE If the command is a diagnostic command, both drives will execute the command and the slave will report its status to the master via the Host PDIAG signal. Drive selection always refers to the state of the DRV bit in the Device/Head register and the position of the position of the C/D jumper throughout this manual. Cable Select ------------ This optional method of drive master/slave designation can be enabled by jumper selection as described below. If used, special cabling can be used to selectively ground the CSEL interface signal of the drive intended to be drive C (0). This drive will then function as the master. If CSEL is allowed to float the drive will recognize it- self as drive D (1) and function as the slave. ********************************************************************** I N S T A L L ********************************************************************** CONNER CFS-635A/850A/1275A PRODUCT MANUAL 20401006-001 REV. A 7/95 Notes on Installation ===================== Drive mounting -------------- horizontally vertically +-----------------+ +--+ +--+ +------------------+ | | | +-----+ +-----+ | | | x | | | | | | | | x+----------------+x +-+-----------------+-+ | | | | | | ||x x|| +---------------------+ | | | | | | || x x || | | | | | | || x x || | | | | | | || x x || +---------------------+ | +-----+ +-----+ | || xx || +-+-----------------+-+ +--+ +--+ || x x || | | || x x || | | || x x || +-----------------+ |x x| x++----------------++x UNACCEPTABLE! Mounting the Drive ------------------ You can mount the drive either vertically or horizontally. The drive will meet all performance specifications when mounted at any orienta- tion. CAUTION The surface(s) on which you mount the drive should be flat and paralled to prevent uneven pressure on the drive. Mounting the drive on an uneven surface could cause the drive's base to deform, degrad- ing drive performance. CAUTION When using the side mounting holes, verify the screw length to ensure clearance from the drive's printed circuit board before tightening the screw. Signal Levels ------------- All signal levels are TTL compatible. A logic "1" is > 2.0 Volts. A logic "0" is from 0.00 Volts to 0.70 Volts. Read/Write Heads and Disks -------------------------- Data is recorded on 95mm diameter disks through thin film or MIG heads. The CFS635A contains two disks with three data surfaces and three read/write heads. The CFS850A contains: - two disks with four data surfaces - four read/write heads The CFS1275A contains: - three data surfaces with six data surfaces - six read/write heads 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. Attaching a Data Cable to the Drive ----------------------------------- Attach the data cable from the host to the Task File Interface connector. CAUTION Do not route the data/power cable next to the drive PCB or any other high frequency or large current switching signals. Improper drive operation can result from improper cable routing. The recommended mating connector for the Task File Interface is Molex P/N 15-47-5401 or equivalent. You may daisy-chain two drives on this connector. The maximum cable length is 18 inches. Power Connector --------------- 4-Pin Power and pin connector assignments -------------------+ --+ +------------+| pin 1 +12 Volts | | 4 3 2 1 || pin 2 GND -+ +------------+| pin 3 GND ------------------+ pin 4 + 5 Volts 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. ********************************************************************** F E A T U R E S ********************************************************************** CONNER CFS-635A/850A/1275A PRODUCT MANUAL 20401006-001 REV. A 7/95 Overview of the Drives ---------------------- The Conner Filepro Series CFS635A/CFS850A and CFS1275A are enhanced IDE, low-profile hard disk drives that are designed to operate with an IBM PC/AT or equivalent host computer system in translate mode. The drive provides these features: - Can be installed in a wide range of host systems - Task File emulation and ATA compatibility allows installation in a wide range of host systems - High performance rotary voice coil actuator with embedded servoing eliminate the need for T-cal - 1/7 Run length limited code - High shock resistance - Sealed HDA - Automatic actuator latch against inner stop upon power-down - Microprocessor-controlled diagnostics routines that are auto- matically executed at start-up. - 64 segmentable cache buffer - Read Look Ahead and selectable Write Caching - Automatic error correction and retries, ECC on the fly - supports ATA Standard PIO Mode 4 and DMA Mode 2 - Block size 512 bytes - supports both CHS and LBA addressing - Allows daisy-chaining up to two drives on the AT interface - Auto-Translate (Universal Translate) - 4-byte ECC diagnostic check in read/write Firmware -------- The drive's firmware includes a command set which the host uses to control the drive. The command set allows the host to request the following types of actions: - report drive status - seek a specific point on the disk - read and write data Universal Translate Mode ------------------------ Conner has established a Universal Translate Mode which enables the user to configure the drive in an AT environment to any cylinder, head, and sector configuration desired. The translate configuration is limited only by the maximum capacity of the drive. Upon initial power up to the drive it will default to a configuration shown below: Cylinders Heads Sectors CFS635A 1238 16 63 CFS850A 1651 16 63 CFS1275A 2477 16 63 After the drive is ready, the host system may issue INIT DRIVE PARMS COMMAND (command code 91hex) to alter the translate configuration (number of heads and number of sectors per track). The drive will then: - calculate the total number of available logical tracks based upon the entered sector and head values - save the drive parameters in non-volatile memory for subsequent drive operations Seek Times ---------- +----------------------------------+--------+ | track to track max. | 3 ms | +----------------------------------+--------+ | Average msec. | 14 | | Average msec. max. | 26 | +----------------------------------+--------+ |Latency msec. avg. | 8.33 | +----------------------------------+--------+ The timing is measured through the interface with the drive operating at nominal DC input voltages. The timing also assumes that: - BIOS and PC system hardware dependency have been subtracted from timing measurements. 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. Head Positioning Mechanism -------------------------- The two read/write heads are supported by a mechanism coupled to a rotary voice coil actuator. Task File Interface Signal Connector Pin 28 ------------------------------------------- Pin 28 Cable Select (I/O) Cable Select is functional when the C/S jumper is inserted, which routes the C/D select to this pin. When set high, drive D: is selelcted; when set low, drive C: is selected. Error Correction ---------------- The drives use a Reed-Solomon code to perform error detection and correction. For each 512-byte block, the software error correction polynominal is capable of correcting: - one error burst up to 22 bits - two error burst up to 11 bits each Single bursts of 11 bits or less are corrected on the fly (OTF) with no performance degradation. Execute Drive Diagnostic ------------------------ Command Number: 90 hex Description This command performs the internal diagnostic tests implemented by the drive. The diagnostic tests are only executed upon receipt of this command. The drive sets BSY immediately upon of the command. If the drive is a master, the drive performs the diagnostic tests and saves the results. It then checks to see if a slave drive is present and waits up to 5 seconds for the slave to complete its diagnostics. If the slave successfully completes its diagostics, it asserts -HOST PDIAG. If unsuccessful, the master drive resets BSY in the Status register and generates an interrupt. The Error bit (ERR) is set in the Status register and the Error register is updated. The value in the Error register should be viewed as a unique 8-bit code and not as the single-bit flags defined previously. The inter- face registers are set to initial values except for the Error register. The table below details the codes in the Error register and a corresponding explanation. Error Code Description 01 hex No error detected 02 hex Format device error 03 hex Sector buffer error 8x hex Slave drive failed Additional codes may be implemented at the manufacturer's option. NOTE If the slave drive fails diagnostics, the master drive shall "OR" 80 hex with its own status and load that code into the Error register. If the slave drive passes diaagnostics or there is no slave drive connected, the master drive shall sect bit 7 of the Error register Task File to 0. Reliability ----------- MTBF 300,000 hours POH MTTR 10 minutes typical Preventive Maintenance None Component Design Life 5 years Start/Stop Cycles 40,000 minimum Safety Standard --------------- The drive is designed to comply with relevant product safety standards, including: - UL 478, 5th edition, Standard for Safety of Information Processing and Business Equipment, and UL 1950, Standard for Safety of Information Technology Equipment - CSA 22.2#220, Information Processing and Business Equipment, CSA 22.2#950, Safety of Electrically Energized Office Machines - IEC 380, Safety of Electrically Energized Office Machines, and IEC 950, Safety of Information Technology Equipment Including Electrical Business Equipment - VDE 0805, VDE 0805 TIEL 100, VDE 0806 - Complies with FCC Class B, Part 15, Subpart J