FIC 486-JAL Manual de usuario
486- JAL
MAIN BOARD
USER’S MANUAL
DOC. NO.
:
12409
Rev.
:
B
Date
:
MAY
1993
Table of Contents
INTRODUCTION l l l l l l l l l l l l l 1
OVERVIEW ........................
1
SPECIFICATIONS .....................
1
MOTHERBOARD LAYOUT ................
3
SYSTEM BLOCK DIAGRAM. ...............
4
INSTALLATION l l l l l l l l l l l l l l 5
CONNECTOR DESCRIPTION ...............
5
JUMPER DESCRIPTION ..................
10
INT/EXT BATTERY SELECTION (FOR
DS12885Q
ONLY) . . 11
CPU TYPE SELECTION ..................
11
ON-BOARD VGA CONTROLLER .............
11
FDD TYPE SELECTION ..................
11
LOCAL IDE SELECTION .................
12
HDD SPEED SELECTION (PDC 20230 ONLY) ........
12
CPU SPEED SELECTION (PDC 20230 ONLY) ........
12
CPU CLOCK SELECTION .................
13
SYSTEM MEMORY l l l l l l l l l l l l 15
MEMORY CONFIGURATION . . . . . . . . . . . . . . . 15
Appendix A
AWARDBIOS SETUP l l l l l l l l l l l 17
SYSTEM SETUP CONFIGURATION ............
17
STATUS PAGE SETUP ..................
18
OPTIONS PAGE SETUP ..................
18
SAVE AND EXIT .....................
18
Appendix B
AMIBIOSSETUP
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.
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.
.
.
.
.
.
l
a
l l 19
SYSTEM SETUP CONFIGURATION ............
19
STANDARD
CMOSSETUP
.................
20
ADVANCED CMOS SETUP ................
21
WRITE TO CMOSANDEXIT ...............
22
Appendix C
TECHNICALINFORMATION l
o
o
l
o
l
e
23
SYSTEM I/O ADDRESSMAP ................
23
HARDWARE INTERRUPT REQUESTS ..........
25
DMA ASSIGNMENTS ...................
26
MEMORY MAP ......................
27
N
ii-
486JAL
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INTRODUCTION
OVERVIEW
The
486.JAL
Motherboard
The 486-JAL is a high-performance VESA mother board, offering
outstanding features and speed ideal for building advanced personal
computers or workstations. The board utilizes high grade components
as listed below:
SPECIFICATIONS
Features of this board include:
0
0
0
0
0
0
0
0
0
0
0
l
0
0
0
Intel
80486DX/80486DX2/80486SX/80487SX
microprocessor.
Dual CPU in PQFP and PGA packages.
VIA
VT82C470
PC/AT chipset.
Supports
1MB
up to 32MB of DRAM memory;
Provides page mode DRAM operation.
Shadow RAM.
128KB
BIOS.
One
16-bit,
120-pin
ISA expansion slot.
CPU clock output frequency selectable by jumpers.
Cirrus GD5426 Local Bus VGA controller.
Promise PCD20230 Local Bus IDE controller (optional).
Real time clock/calendar.
Built-m IDE
HDD/FDD
and Local Bus IDE interface.
Two serial ports and one parallel port.
PS/2 mouse and PS/2 keyboard connector.
Local Bus VGA with 512K/lMB
/2MB
Video RAM on board.
LPM-size board ( 13.0” x 7.8”)
-
l-
486JA L
INTRODUCTION
MOTHERBOARD LAYOUT
BANK
1
El
JCl
JC2
n
JC3
a
LL
--Id
N-
j
FDD
j
HDD
-
l--J
J45
p---l
B
0
8
E
0
J24
J17
J16
J18
KEYLOCK
SPKR
RESET
486JAL
A4otherboard
Layout
-
2-
486JA L
INTRODUCTION
SYSTEM BLOCK DIAGRAM
MEMORY
ADDRESS
BUS
MA
,I,
!$
3
iz
g
SWEM
CPU ADDRESS
PDC
,
_lGD5426J=
85
System Block Diagram
serialport
7
parallel p
art
INSTALLATION
CONNECTOR DESCRIPTION
Connector
CNl-
PS/2 Keyboard
CN2
-
PSI2
Mouse
CN3
-
Serial port 1
CN4
-
Serial port2
Pin out
Signal Name
1
Keyboard data
2
NC
3
GND
4
vcc
5
Keyboard clock
6
NC
1
Mouse data
2
.
NC
3
GND
4
vcc
5
Mouse clock
6
GND
1
Data carrier detect
2
Receive data
3
Transmit data
4
Data transmit ready
5
GND
6
Ready to receive data
7
Request to send data
8
Clear to send
9
Ring indicator
1
Data carrier detect
2
Receive data
3
Transmit data
4
Data transmit ready
5
GND
6
Ready to receive data
7
Request to send data
8
Clear to send
9
Ring indicator
-
5-
486JA L
INSTALLATION
Connector
-
CN5
-
Parallel port
CN6
-
VGA connector
CN7
-
Power connector
Pin out
~-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18-25
-_____
1
2
3
4
5-8
9
10
11-12
13
14
15
-~
1
2
-3
4
5-8
9
10-12
_______
______--
=
Signal Name
-______
LPT strobe
LPT DO
LPTDl
LPT D2
LPT D3
LPT
104
LPT
D5
LPT D6
LPT D7
LPT acknowledge
LPT busy
Paper end
Selected status
Auto line feed
LPT error
Initiate printer
Select printer
GND
Red
Green
Blue
NC
GND
NC
GND
NC
Horizontal sync
Vertical sync
NC
--
Power good
+
sv
+ 12v
-12v
GND
-5v
+ 5v
______-____---
__p
INSTALLATION
Connector Pin out Signal Name
513
-
85
14A
connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
-
VP0
GND
VP1
GND
VP2
GND
VP3
Enable video data
VP4
Enable sync signal
VP5
Enable video dot clock
VP6
NC
VP7
GND
Video dot clock
GND
Banking
GND
Horizontal sync
GND
Vertical sync
NC
GND
NC
INSTALLATION
Connector
FDD
-
FDD connector
-
Pin out
Signal Name
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
3q
3i
1,3,5,7,
9,
11,
13,
15,
17,
19,21,
23,25,
27,29,
31,33
-
Density selection
NC
NC
Index detection
Select motor A
Select drive B
Select drive A
Select motor B
Direction control
Step pulse
Write data
Write enable
Track
0
Write protect
Read data
Head select
Disk change
GND
-
a-
486-JA
L
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