Adaptec AHA-1522B Installation Guide - Page 4

Adaptec AHA-1522B - ISA to SCSI-2 PC Card Manual

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Jumper Block .18 (DMA Request & Acknowledge Channe0 Note that the DMA channel is also controller by jumper block J6. The following diagram shows the default settings of jumper block J8: OOO OOO J8 OOO OOO Pin Pair DR D6 D5 CO DA D6 D5 DO Description DO, DO When jumpers are installed on DO, DO, it selects DMA channel 0. The other J8 jumper options are reserved. Jumper Block .19 (IRQ Channel, Port Address, and BIOS) The following diagram shows the default settings of jumper block J9: III O O O O J9 O OOO 12 11 10 19 AL J6 J4 BE Pin Pair Description 12, II, 10, 19 Use these four pin pairs to select the IRQ channel. You must also select the corresponding interrupt channel with the IC pin pairs on }umber block J6. Jumper 12 = IRQ 12 'Jumper 11 = IRQ 11 (Default) Jumper 10 = IRQ 10 Jumper 19 = IRQ 9 (not recommended with Windows 3.0) AL Select port address range. No jumper = 340-35E (hex); Jumper = 140- 15E (hex) Jo, .14 Select BIOS address location. O O C&XX0 = O O EJ6 J4 D8000 = O J6 J4 CC000 =11 O iiiJ6 J4 QC000 = J6 J4 Default BE Select host adapter BIOS enable. 'Jumper = Boot from SCSI disk enabled; No jumper = boot from SCSI disk disabled. 'denotes default configuration

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Jumper
Block
.18
(DMA
Request
&
Acknowledge
Channe0
Jumper
Block
.19
(IRQ
Channel,
Port
Address,
and
BIOS)
Note
that
the
DMA
channel
is
also
controller
by
jumper
block
J6.
The
following
diagram
shows
the
default
set-
tings
of
jumper
block
J8:
O
O
O
O
O
O
O O O
O
O
O
DR
D6
D5
CO
DA
D6
D5
DO
Pin
Pair
Description
DO,
DO
J8
When
jumpers
are
installed
on
DO, DO,
it
selects
DMA
channel
0.
The
other
J8
jumper
options
are
reserved.
The
following
diagram
shows
the
default
settings
of
jumper
block
J9:
O
O
O O O
O
O
O
III
12
11
10
19
AL
J6
J4
BE
Pin
Pair
Description
12,
II,
10,
19
J9
Use
these
four
pin
pairs
to
select
the
IRQ
channel.
You
must
also
select
the
corre-
sponding
interrupt
channel
with
the
IC
pin
pairs
on
}umber
block
J6.
Jumper
12
=
IRQ
12
'Jumper
11
=
IRQ
11
(Default)
Jumper
10
=
IRQ
10
Jumper
19
=
IRQ
9
(not
recommended
with
Windows
3.0)
AL
Select
port
address
range.
No
jumper
=
340-35E
(hex);
Jumper
=
140-
15E
(hex)
Jo,
.14
Select
BIOS
address
location.
BE
O
O
C&XX0
=
O
O
J6
J4
CC000
=11
O
J6
J4
D8000
=
E
QC000
=
iii
O
J6
J4
J6
J4
Default
Select
host
adapter
BIOS
enable.
'Jumper
=
Boot
from
SCSI
disk
enabled;
No
jumper
=
boot
from
SCSI
disk
disabled.
'denotes
default
configuration