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154042b.txt
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1990-06-22
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AHA-1540/42B INSTALLATION GUIDE
HARDWARE INSTALLATION
The Adaptec AHA-154XB AT-to-SCSI Host Adapter has been designed to operate
as shipped in the majority of AT class computers. The Host adapter's
factory default settings should remain in their original positions. The
AHA-154XB is shipped with the following settings:
SCSI Address 7
SCSI Parity Enabled
Terminators Installed
Terminator Power Supplying
Synchronous Negot. Disabled
DMA Channel 5
Interrupt Channel 11
AT Port Address 330h
AT Bios Address DC000H, Enabled
Bios Wait State 0, Disabled
FD Controller Enabled (AHA-1542B)
DMA Transfer Speed 5 MB/second
Auto Sense Enable
TO PERFORM INSTALLATION:
TURN OFF POWER TO THE SYSTEM AND EXTERNAL EQUIPMENT.
Remove the cover of your AT personal computer to expose the AT bus slots.
Locate an unused AT expansion slot in your AT system. AT type slots can be
recognized by the fact that they have 2 edge connectors, one 62-pin and the
other 36 pin.
Remove the corresponding system expansion slot cover by turning the screw
that secures it from the top counter-clockwise.
Align the AT I/O Bus Connector on the bottom of the AHA-154X into this AT
slot. Use the screw from the corresponding expansion slot cover to secure
the AHA-154X's bracket to your AT system frame.
The SCSI bus must also be terminated correctly to ensure proper operation.
The first and last physical SCSI devices on the SCSI cable must have
terminators installed. All other SCSI devices must have terminators
removed.
The SCSI factory-installed Bus terminators on the AHA-154X should be removed
if and only if you attach SCSI devices to both an internal and external cable
since the internal and external cable SCSI connectors are the same SCSI Bus.
Attach the SCSI Bus to the host adapter and the peripherals, using either
the internal or external connector, making sure that pin 1 orientation is
maintained throughout the bus.
If the host adapter is not the first or the last unit on the cable, remove
the SCSI terminators from the board.
Reassemble the system in the reverse order.
JUMPER CONFIGURATION REFERENCE
Five sets of jumpers are located on the board to configure user-selectable
options. Jumpers installed at the factory are shown as "(x)". Those not
installed are shown as "o". It should not be necessary to change the
jumper settings.
J5-GENERAL CONTROL
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13
o o o o o o o (x) o (x) o o o
o 1 - Synchronous Transfer negotiation enable.
o 2 - Diagnostics (used only at Adaptec).
o 3 - SCSI Parity disable.
o 4 o (x) o (x) o (x) o (x) - SCSI Address ID
o 5 o o (x) (x) o o (x) (x) (SCSI disks should be
o 6 o o o o (x) (x) (x) (x) set for ID 0 and 1)
----------------------------------------
7 6 5 4 3 2 1 0
o 7 o (x) o (x) - DMA Channel Select
x 8 o o (x) (x) See also jumper J9
-------------------
7 6 5 0
o 9 o (x) o (x) o (x) - Interrupt Channel Select.
x 10 o o (x) (x) o o See also jumper J9
o 11 o o o o (x) (x)
---------------------------
9 10 11 12 14 15
o 12 o (x) o (x) - DMA Transfer Speed
o 13 o o (x) (x) in MB/sec.
------------------
5.0 5.7 6.7 8.0
J6-BIOS/Auto Sense Control
Pin 1 2 3 4 5
(x) o o o o
1 - BIOS Enable.
2,3,4 - Not Used.
5 - Auto Sense disable
J7-ADDRESS SELECTION
Pin 1 2 3 4 5 6 7 8
o (x) o o o o o o
o 1 - Floppy Secondary Address select (AHA-1542B only).
x 2 o (x) o (x) o (x) - AT I/O Port Address Select
o 3 o o (x) (x) o o in Hexadecimal
o 4 o o o o (x) (x)
----------------------------
334 330 234 230 134 130
(Note: The host adapter bios is "hard coded" to 330H)
o 5 o (x) o (x) - BIOS Wait State Select
o 6 o o (x) (x) in nanoseconds
------------------
0 100 200 300
o 7 o (x) o (x) - BIOS Base Address Select
o 8 o o (x) (x) in Hexadecimal
-----------------------
DC000 CC000 D8000 C8000
J8-FLOPPY DISK SELECTION (AHA-1542B only)
Pin 1 2 3 4 5 6 7 8
(x) (x) o (x) o (x) o o
1 - Floppy enable
2,3 - DMA Request 2 or 3 select
4,5 - DMA ACK 2 or 3 select
6,7 - INT Request 6 or 10 select
8 - Dual Speed enable
J9-DMA/INTERRUPT SELECTION
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14
o (x) o o o (x) o o o o (x) o o o
o 1 - DMA Request 0 Select
x 2 - DMA Request 5 Select
o 3 - DMA Request 6 Select
o 4 - DMA Request 7 Select
o 5 - DMA ACK 0 Select
x 6 - DMA ACK 5 Select
o 7 - DMA ACK 6 Select
o 8 - DMA ACK 7 Select
o 9 - INT Request 9 Select
o 10 - INT Request 10 Select
x 11 - INT Request 11 Select
o 12 - INT Request 12 Select
o 13 - INT Request 14 Select
o 14 - INT Request 15 Select
SOFTWARE INSTALLLATION
Copy the files from the ASW-1410 Program diskette to the root directory of
drive C using the MS-DOS COPY command. In order for the ASPI MS-DOS Manager
files to be loaded whenever the system is booted, the CONFIG.SYS file must
contain the following DEVICE=commands:
DEVICE = ASPI4DOS.SYS
DEVICE = ASPIDISK.SYS
Using any ASCII file editor, add the individual device driver commands to an
existing CONFIG.SYS file, or follow the Instructions in the MS-DOS Operations
Reference Manual to create a new CONFIG.SYS file. FAILURE TO LOAD ALL THE
DEVICE DRIVERS IN THE CORRECT ORDER, CAUSES THE PROGRAM TO NOT BE INSTALLED.
The following command line options may be added to the device drivers in the
CONFIG.SYS file. (Refer to the User's Manual for details).
DEVICE = ASPI4DOS.SYS (/D) (/P<port address) (/L) (/V) (/W) (/X<speed>)
(/N<bus on time>) (/F<bus off time>) (/I).
MS-DOS provides access to physical hard disk drives C and D. You must use
the MS-DOS FDISK and FORMAT programs for drives C and D. DO NOT use AFDISK
with drive C and D. To use a hard disk partitioned by AFDISK as drive C or
D, you must use AFDISK to delete the partitions, and then use MS-DOS FDISK
to create new partitions.
When starting AFDISK program, it must be run from the root directory of
drive C or the AFDISK directory if an AFDISK directory was created. When
ready, type:
AFDISK (at the DOS prompt)
and press ENTER. The AFDISK utility is menu driven. Follow the directions
on the screen to partition and format the selected SCSI devices. The AFDISK
utility also includes an on-line HELP file which is accessed by pressing the
F1 key. The AFDISK may be exited at any time without executing by pressing
the ESC key and being careful to choose the selections that do not write to
or format the disk.
When the SCSI device(s) are successfully partitioned and formatted, reboot
the system. This saves any changes made and allows use of the newly
installed disk(s) or partition(s).
TERMINATION
The SCSI bus must be terminated correctly to ensure proper operation. The
first and last physical SCSI devices on the SCSI cable must have terminators
installed. All other SCSI devices must have terminators removed. The AHA-
154XB host adapter is usually the first device on the SCSI Bus and has
terminators installed at the factory.
(x) - SCSI Address ID
o 5 o o (x) (x) o o