Conner CFS635A Bedienungsanleitung
CFS635A/CFS850A/CFS1275A
Intelligent Disk Drive
Product Manual
Production Release Per ECO 6520
P/N 20401006-001
Revision A
July 1995
3081 Zanker Road
San Jose, CA 95134-2128
(408) 456-4500
FCC Notice This equipment generates and uses radio frequency energy and, if not installed
and used properly; that is, in strict accordance with the manufacturer's
instructions, may cause interference to radio and television reception. It has
been type tested and found to comply with the limits for a Class B computing
device in accordance with the specifications in Part 15 of FCC Rules, which are
designed to provide reasonable protection against such interference in a
residential installation. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause interference
to radio or television reception, which can be determined by turning the
equipment on and off, you are encouraged to try to correct the interference by
one or more of the following measures:
• Reorient the receiving antenna.
• Relocate the computer with respect to the receiver.
• Move the computer into a different outlet so that the computer and receiver
are on different branch circuits.
If necessary, you should consult the dealer or an experienced radio/television
technician for additional suggestions. You may find the following booklet
prepared by the Federal Communications Commission helpful:
How to Identify and Resolve Radio-TV Interference Problems
This booklet (Stock No. 004-000-00345-4) is available from the U.S. Government
Printing Office, Washington, DC 20402.
Warning: Changes or modifications made to this equipment which have not
been expressly approved by Conner Peripherals, Inc. may cause radio and
television interference problems that could void the user's authority to operate
the equipment.
Further, this equipment complies with the limits for a Class B digital apparatus
in accordance with Canadian Radio Interference Regulations.
Cet appareil numérique de la classe B est conforme au Règlement sur le
brouillage radioélectrique, C.R.C., ch. 1374.
Conner and the Conner logo are registered trademarks of Conner Peripherals,
Inc. All other trademarks mentioned in this manual are property of their
respective owners.
Copyright 1994, 1995, Conner Peripherals, Inc.
All rights reserved.
Document No. 501-083 07/95
Important Information About this Manual
All information contained in or disclosed by this document is considered
proprietary by Conner Peripherals, Inc. By accepting this material, the recipient
agrees that this material and the information contained therein are held in
confidence and in trust and will not be used, reproduced in whole or in part, nor
its contents revealed to others, except to meet the purpose for which it was
delivered. It is understood that no right is conveyed to reproduce or translate
any item herein disclosed without express written permission from Conner
Peripherals, Inc.
Conner Peripherals, Inc. provides this manual "as is," without warranty of any
kind, either expressed or implied, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose. Conner
Peripherals, Inc. reserves the right to change, without notification, the
specifications contained in this manual.
Conner Peripherals, Inc. assumes no responsibility for the accuracy,
completeness, sufficiency, or usefulness of this manual, nor for any problem that
might arise from the use of the information in this manual.
Technical Reference Manual Page i
Table of Contents
1. Overview of the Drive 1
What is the Drive? 1
Features of the Drive 1
What the Drive is Composed Of 3
Mechanical Design Features 3
Drive Assembly Housing 3
Head Positioning Mechanism 3
Read/Write Heads and Disks 3
Electrical Design Features 5
Data and Power Connections 5
Preamplifier 5
Circuit Board 5
Firmware 5
2. Specifications 7
Specifications In This Chapter 7
Drive Capacity 8
Physical Configuration 8
Performance Characteristics 9
Read/Write Characteristics 10
Reliability 10
Power Requirements 11
Environmental Tolerances 11
Safety Standards 12
Physical Characteristics 13
3. How the Drive Operates 15
Functions of the Drive 15
Drive Operational Modes 15
Error Correction 15
Universal Translate Mode 16
Master/Slave Configuration 16
Cable Select 17
4. Installing the Drive 19
Take These Precautions 19
Installing the Drive 19
Attaching a Data Cable to the Drive 21
Attaching Power to the Drive 23
Mounting the Drive 24
5. Host Interface 25
About the Host Interface 25
Signal Conventions 25
Signal Levels 25
Signal Descriptions 26
ATA/CAM Master/Slave Reset Timing 28
Table of Contents Filepro CFS635A/CFS850A/CFS1275A
Page ii Filepro CFS635A/CFS850A/CFS1275A
Host PI0 16-Bit Timing Values 30
Host Demand Mode DMA 16-bit Interface Timing Values 31
6. Register Addresses and Functions 33
Host Address Decoding 33
Addressing the Data 35
Cylinder-head-sector (CHS) mode 35
Logical Block Addressing (LBA) Mode 35
Descriptions of the Registers 36
Data Register 36
Error Register 37
Features Register (formerly Write Precomp Register) 38
Sector Count 38
Sector Number 38
Cylinder Low 39
Cylinder High 39
Device/Head Register 40
Status Register 41
Alternate Status Register 42
Device Control Register 43
Drive Address Register 44
Command Register 44
7. Command Set 47
Command Register 47
Conner Specific 48
Get Drive Feature word (00) 49
Read the Drive Switches (02) 50
Power Lock (08) 50
Power Unlock (09) 50
Execute Drive Diagnostic 51
Execute SMART Function 51
Device Attributes Data Structure 53
Device Attribute Thresholds Data Structure 57
Error Reporting 59
Format Track 60
Marked Bad Sector 60
Assign 60
Identify Device 62
Initialize Device Parameters 65
Power Commands 66
Read DMA 67
Read Multiple 68
Read Sector(s) 69
Read Sector Buffer 70
Read Verify Sectors 71
Recalibrate 71
Seek 72
Set Features (Set Look Ahead Read) 72
Set Multiple Mode 73
Write DMA 74
Write Caching 74
Write Multiple 75
Filepro CFS635A/CFS850A/CFS1275A Table of Contents
Technical Reference Manual Page iii
Write Caching 75
Write Sector(s) 77
Write Caching 78
Write Sector Buffer 79
8. Error Reporting 81
Error and Status Detection 81
Error and Status Messages 81
Table of Contents Filepro CFS635A/CFS850A/CFS1275A
Page iv Filepro CFS635A/CFS850A/CFS1275A
Technical Reference Manual Page 1
Overview of the Drive
1
What is the Drive?
The Conner Filepro Series CFS635A/CFS850A/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 drives support
advanced ATA PIO mode 4 and DMA Mode 2 data transfer protocols for superior
I/O performance. Logical Block Addressing (LBA) is supported for compatibility
with advanced system (BIOS) which support greater than 528 MB capacity IDE
drives, as well as Cylinder-Head-Sector (CHS) addressing for backward
compatibility.
Drive Model: Form Factor:
Capacity (formatted):
No. of disks/heads:
CFS635A
CFS850A
CFS1275A
inch high, 3.5 inch
inch high, 3.5 inch
inch high, 3.5 inch
635MB
850MB
1275MB
2 disk/ 3 heads
2 disk/4 heads
3 disk/6 heads
For simplicity , we often refer to these drives collectively in this manual as “ the drive”.
Features of the Drive
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.
• one-of-seven run-length limited code.
• high shock resistance.
• Sealed head/disk assembly.
• automatic actuator latch against inner stop upon power-down.
• microprocessor-controlled diagnostic routines that are automatically
executed at start-up.
• 64KB segmentable cache buffer.
• Read Look Ahead and selectable Write Caching.
• automatic error correction and retries, ECC on the fly.
Chapter 1 Overview of the Drives
Page 2 Filepro CFS635A/CFS850A/CFS1275A
• 512-byte block size.
• 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.
• Supports ATA (AT attachment) interface standard.
Dieses Handbuch passt für folgende Modelle
2
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