Adaptec ACB-2002A User manual

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ACB-2002A
User's Manual

1.0 INTRODUCTION
1.1 SCOPE AND PURPOSE OF MANUAL
The purpose of this manual is to guide the system integrator
through a successful installation of Adaptec's ACB-2002A board.
This includes both hardware and software installation, as well as
troubleshooting information.
1.2 REFERENCE DOCUMENTS
* IBM PC or XT Guide to Operation Manual
* IBM DOS Reference Manual Version 2.0, 2.1, or 3.0
* Appropriate Disk Drive OEM Manual
1.3 OVERVIEW OF PRODUCT
The Adaptec ACB-2002A is a high performance 5 1/4" and 3 1/2"
Winchester Disk Controller for the IBM PC or XT and equivalent
personal computers. The ACB-2002A is an extention of Adaptec's
ACB-2002 board. The ACB-2002A has Adaptec's BIOS installed,
while the ACB-2002 requires the system integrator to supply his
own BIOS. The ACB-2002A is a complete "plug and play" controller
board and requires no special BIOS or software driver.
The Adaptec ACB-2002A is one of the highest performance
controllers available today for the IBM PC/XT compatible
marketplace. In addition, it is fully hardware, software and
format compatible with the IBM XT hard disk controller.
The Adap te c ACB- 20 0 2A
following features:
Winchester Disk Controller has the
o Fully IBM hardware compatible. It plugs directly into the
IBM PC/XT chassis without modification.
o Fully IBM software compatible. It operates with all IBM PC/XT
DOS hard disk drivers and application programs.
o Fully IBM XT disk format compatible. You can interchange
drives between the ACB-2002A and the IBM XT controller with-
out reformatting.
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o
Controls both 5 1/4" and 3 1/2" ST-506 type Winchester disk
drives. This allows the system integrator to interchange
drives to optimize space requirements.
o On-board primary format utility. There is no need to send a
software formatter on a floppy with every controller.
o On-board Adaptec copyrighted BIOS. There is no need to write
a special BIOS or software driver.
o 2 to 1 interleaving of the disk. This achieves the maximum
rate of OMA transfers that the IBM PC bus can accept. Also
this interleave factor can be varied from 2 to 9.
o User defined drive parameters. This gives you the ability to
install any drive onto the controller without BIOS or firm-
ware changes,·· i.e. device independence. This gives
flexibility in the choice of drives and ease of mixing drives
in manufacturing.
o Auto-configuration of drive. The controller writes the drive
parameters onto the drive during format and reads them on
power-up. This allows formatting on one controller and no
need to reinitia1ize on another ACB-2002A controller. This is
ideal for field upgrade of drives with no user intervention.
o Four standard drive tables in BIOS. This gives the option of
using jumpers instead of user defined drive parameters.
o Support of 2 ST506 type drives. The drives do not need to be
the same in capacity or manufacturer. This allows the
maximum expansion of hard disks on the IBM PC/XT.
o Support of wedge servo drives such as Quantum, Syquest,
Microscience International, and Tulin. This gives you drive
flexibility and no need to order special controller firmware.
o 13 microsecond high performance seek step rate. This
achieves maximum performance of the drive by reducing the
seek access time. Many drives that are now on the market
take advantage of this feature.
o Power-on diagnostics and self diagnostics for controller self
checking. This gives a high confidence level that the
controller is functioning properly.
o Seek and data check recovery. This reduces the probability
of erroneous data.
o
32-bit Error Correction Code (ECC) on both 10 and data
fields. This corrects up to 11 bit burst errors, and guaran-
tees data integrity.
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1.4
HARDWARE AND SOFTWARE REQUIREMENTS
The ACB-2002A can be installed in any IBM PC/XT or equivalent IBM
compatible computer. The successful installation of the Adaptec
ACB-2002A requires the following hardware and software.
Hardware
1. IBM PC or XT or equivalent IBM compatible computer with:
a. One 5 1/4" floppy diskette drive
b. One available system expansion slot
c. Room for one 5 1/4" or 3 1/2" Winchester (hard) disk drive
2. 5 1/4" or 3 1/2" Winchester disk drive(s) having the industry
standard ST506 interface with maximum capacity of 16 Mega-
bytes.
3. External power supply or power booster to support the power
required by the Winchester disk drive. If using an IBM XT or
a very low power drive in the IBM PC, this is not required.
4. 20-pin and 34-pin flat ribbon cables to connect the drive to
the controller.
Software
1. IBM PC/XT DOS version 2.0 or newer revisions.
1.5 SPECIAL APPLICATIONS FIRMWARE
APPLICATION
AT&T 6300
COMPAQ DESKPRO
8 MHz PCls
PC/IX Operating System
DMA 360 and Syquest 312
drive operation
16 MB to 64 MB using 1
or 2 physical drives
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COMMENTS
Requires AT&T motherboard boot
ROM revision 1.2 or later
Requires Adaptec firmware
PIN 400110-00A or later plus
BIOS PiN 400051-00B or later
Same as Compaq Deskpro
Requires Adaptec firmware
PIN 400110-00A or later
Requires Adaptec ACB-2010A
product with firmware revision
400062-00B or later
Requires Adaptec ACB-2010A
using logical unit partitioning
--

1.6 QUICK INSTALLATION
For those of you that cannot wait to use your ACB-2002A
controller, the following steps will get you up and running. This
installation is for one drive of capacity up to 16 MB but using
only 10 MB (see section 3.2 to format to 16 MB). After you
install it, please read the complete User's Manual so you can
use ALL of the capabilities of the ACB-2002A.
STEP 1
Be sure that you have all the required hardware and software as
detailed in section 1.4, i.e. an IBM PC/XT , DOS 2.0, or newer
revisions, drive, power supply and cables.
STEP 2
Become aquainted with the ACB-2002A board, looking at the
location of jumpers and. connectors. See figure 2.1.
STEP 3
Configure the drive to be "drive 0" by setting the switches on
the drive. Be sure that the drive is terminated. See figure 2.2.
STEP 4
Configure the controller so it matches your drive as follows:
DRIVE VENDOR AND CAPACITY
Miniscribe 10 MB
Syquest 5 MB
Miniscribe 16MB
Seagate 10MB
Microscience 10 MB
ALL OTHERS
INSTALL JUMPERS
M-N and O-P
M-N and E-F
O-P
none
E-F
A-B
See section 2.5.2, 2.5.2.1 and 2.5.2.2.
STEP 5
Refer to figure 2.4. Connect the drive to the controller using
your 34 pin and 20 pin cables. Drive 0 uses the connectors
nearest to the edge of the board, J0 and J2. See section 2.5.3.
IMPORTANT: BE SURE THAT PIN 1 OF THE CONTROLLER GOES TO PIN 1 OF
THE DRIVE. WHEN MOUNTING IN THE PC, PIN 1 IS FACING DOWN.
STEP 6
If using 3 1/2" or 5 1/4" half height drives no extra power
supply is needed. If using a 5 1/4" full height drive in a IBM PC
attach an additional power supply. If using an IBM XT no
additional supply is needed. See section 2.5.4.
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STEP 7
Mount the drive and controller inside the pc. Turn power ON. IF
ANY PROBLEMS ARISE, SEE CHAPTER 4 TO TROUBLESHOOT.
STEP 8
Boot from floppy drive A using the Supplemental DOS diskette that
contains DEBUG. See Section 3.2.
TYPE
A>DEBUG
-G=C800:CCC
3
o
<CR>
<CR>
COMMENTS
<Carriage return>
<Carriage return>
(interleave factor)
(drive 10)
N
3 <CR>
<CR>
<CR)
(or 'y' if you are using one of the drives in STEP 4)
(with A-B jumper or 5 without A-B jumper installed)
o
8
133 <CR>
133 <CR>
4
132
<CR>
<CR>
WAIT until
press CTRL and
STEP 9
.(landing zone, not used)
(ECC correction span)
(Write pre-comp not used, max. cylinder+1)
(reduced write current, not used)
(head count, or use 2 )
(number of cylinder,132 hex=306 decimal)
format is complete
BREAK (SCROLL LOCK) keys at same time
TURN THE SYSTEM OFF. INSTALL THE DOS SYSTEM DISKETTE WITH "FDISK"
AND "FORMAT" INTO DRIVE "A". THEN TURN THE SYSTEM BACK ON, THUS
COLD BOOTING. Type FDISK and answer questions, then run FORMAT.
See section 3.3.
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2.0 HARDWARE INSTALLATION
2.1 INTRODUCTION
This section describes the steps necessary to install the ACB-
2002A board into the computer. First the operating enviroment,
unpacking procedure, and board layout are described. This section
also describes the integration of the drive and controller into
the computer.
2.2 ENVIRONMENT REQUIREMENTS
The ACB-2002A will perform properly over the following range of
conditions:
Temperature F/C
Humidity
Altitude, feet
MTBF, Hours
2.3 UNPACKING
Operating
32/0 to 131/55
10% to 95%
Sea level to 10,000
20,000 POH @ 55 C
Storage
-40/-40 to 167/75
10% to 95%
Sea level to 20,000
The carrier is responsible for damage incurred during shipment.
In case of damage, have the carrier note the damage on both the
delivery receipt and the freight bill, then notify your freight
company representative so that the necessary insurance claims can
be inititated.
After opening the shipping container, use the packing slip to
verify receipt of the individual items listed on the slip.
Retain the shippibg container and packing material for possible
later reuse should return of the equipment to the factory be
necessary.
NOTE:
THE ACB-2002A, LIKE ALL ELECTRONIC EQUIPMENT IS STATIC SENSITIVE.
PLEASE TAKE THE PROPER PRECAUTIONS WHEN HANDLING THE BOARD. KEEP
THE BOARD IN ITS CONDUCTIVE WRAPPING UNTIL IT IS CONFIGURED AND
READY TO BE INSTALLED IN YOUR SYSTEM.
2.4 BOARD LAYOUT
The ACB-2002A is shown in Figure 2-1. This figure shows the
location of the firmware, BIOS, jumpers and connectors. Note
that pin 1 of the connector is located closest to the PC bus edge
connector.
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4!,HH!J90-00A
BIOS
o
LED
N P R T V X Z ) DRIVE TABLE
• • • • • •• SELECTION AND OPTION
• • • • • •• JU~PERS
~OQSUWY
AIC-16000
AlC-300
~ AIC-5200 I
'-- __ A_IC_-_01_0_----'1 ~ AlC-250
FIR~WARE
8085
8156
BDFHJL
••••••
• • • • • •
ACEG I K
20 PIN SOCKET ~
PIN 1
I ~""7':J1--'-"-''oi°1
34 PIN SOCKET PIN 1 PIN 1
I J2
01 I
JO
01
)
HIGH PERFOR~ANCE
JU~PERS
Figure 2-10 Board Layout
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2.5 INTEGRATION INTO THE SYSTEM
To install the Adaptec ACB-2002A board into your system you must
first configure the drive(s), set the controller jumpers and
connect the drive cables properly. This section describes all
the necessary steps needed to successfully install this hardware.
In order to configure the drives, you need the Disk Drive OEM
Manual that was supplied with your drive. (If you do not have
this manual call your Drive vendor for assistance.) This manual
is required to obtain the drive characteristics for your
particular drive. The controller must match the drive parameters,
Le. number of heads, number of cylinders, step pulse rate, etc.
in order to function successfully. The drive parameters are
divided into two categories; one being the drive changeable
parameters and two, the controller changeable parameters.
2.5.1 DRIVE SELECTION AND TERMINATION
The drive changeable parameters are the drive selection switches
(or jumpers) and the drive termination. These parameters allow a
drive to be selected as drive 0, 1, 2 or 3. This is accomplished
by changing the drive address selection switches or jumpers.
NOTE:
SOME DRIVE MANUFACTURERS HAVE DESIGNATED THE DRIVE ADDRESSES TO
BE 1,2,3,4 INSTEAD OF 0,1,2,3. DO NOT SET THE DRIVE AS A RADIAL
SELECTED
DRIVE. RADIAL SELECTION WILL SET ALL DRIVE OUTPUT
SIGNALS
TO BE ACTIVE, EVEN IF THE DRIVE IS NOT SELECTED. IN THIS
CASE, THE DRIVE LED WILL BE ON AT ALL TIMES.
Use the two lowest drive addresses available as drive "0" and
drive "1" to be seen by the controller.
Before the drives can be cabled to the controller the drive cable
terminator ~ust be properly set. The terminator is used to
reduce signal "ringing" in the cables. The terminator, as its
name implies, must be at the end of each cable in order to have
the controller and drive communicate properly. The controller
has a permanent terminator built-in. The disk drives, since they
can be connected in a daisy chain configuration (see Figure 2-3),
have a removable terminator. This is usually a 16-pin DIP resis-
tor package. The last phys ical dr i ve in the cha i n must have its
terminator installed.
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Exa!!!E~.!..:.. When one drive and one controller are u~sed, both
must be terminated.
CONTROLLER
TERMINATED
DRIVE 0
DRIVE SELECTION = 0
TERMINATOR INSTALLED
Figure 2-2. One Drive, One Controller Termination Example
Example 2: When two drives and one controller are used, only
the last one in the chain is terminated.
CONTROLLER
TERMINATED
I
DRIVE 0
DRIVE SELECTION = 0
TERMINATOR REMOVED
I
DRIVE 1
DRIVE SELECTION = 1
TERMINATOR INSTALLED
Figure 2-3. Two Drive, One Controller Termination Example
Now select the proper drive addresses and remove or install the
required terminators for your system.
2.5.2 CONTROLLER JUMPER SELECTION
The controller changeable parameters are defined as the variables
that can be changed to accommodate the different drive character-
istics. These parameters can easily be changed by jumper(s) or
defined by the user (see Chapter 3 ) for the drive being used.
The parameters shown in Table 2-1 need to be taken from the Disk
Drive OEM Manual and specifications. Table 2-2 shows the drives
supported by the BIOS and selected by the jumpers. If the drive
you are using is not selected by jumpers , Table 2-1 must be
completed. Table 2-1 will be used in Section 3.2 when the user
defined drive parameters are discussed.
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