80386-33 cache ASIC Full size
This document is for the full-sized (13.3" x 12.025") 80386-33 caching motherboard. It's
identifying features are: an LED between expansion slots #5 and #6; eight 16-bit expansion
slots; sixteen sockets for SIMMs (four banks of 4); a socket for a Weitek 3167 or Intel 80387
coprocessor; the Micronics ASIC chipset (four chips); two 9-pin serial port connectors; one
25-pin parallel port connector; one 16-bit IDE connector; one floppy connector.
The bus speed for this motherboard is fixed at 8MHz.
+=============================+
+ +
+ MOTHERBOARD SWITCH SETTINGS +
+ +
+ * = Default setting +
+=============================+
SW1
------------------------------------------
1 Reserved *On
2 80387 Coprocessor installed On
80387 Coprocessor not installed *Off
3 Reserved Off
4 Bios relocation enabled *On
Bios relocation disabled Off
5 Reserved *Off
6 Color video adapter *On
Monochrome video adapter Off
7 Cache enabled *On
Cache disabled Off
8 Reserved Off
SW2
------------------------------------------
1 COM1 Enabled (3F8-3FF) *On
COM1 Disabled Off
2 COM2 Enabled (2F8-2FF) *On
COM2 Disabled Off
3 IDE interface enabled *On
IDE interface disabled Off
4 Floppy controller enabled *On
Floppy controller disabled Off
5 Primary Floppy address (3F0-3F7) *On
Secondary Floppy address (2F0-2F7) Off
6 Parallel port setting (See below)
7 Parallel port setting (See below)
8 Reserved *On
Parallel port settings
SW2.6 SW2.7 Parallel Port Address IRQ
----- ----- ------------- ------- ---
ON ON LPT1 378-37F 7
OFF ON LPT2 278-27F 5
ON OFF LPT1 3B8-3BF 7
OFF OFF Port disabled
+=============================+
+ +
+ MOTHERBOARD JUMPER SETTINGS +
+ +
+=============================+
J5 Keylock / Power LED
Pin 1 - Power LED signal
Pin 2 - no connector
Pin 3 - Ground
Pin 4 - Keyboard lock signal
Pin 5 - Ground
J6 External keyboard connector
Pin 1 - Keyboard clock
Pin 2 - Keyboard data
Pin 3 - no connector
Pin 4 - Ground
Pin 5 - +5 volts DC
J8 External speaker
Pin 1 - Speaker
Pin 2 - no connector
Pin 3 - Ground
Pin 4 - +5 volts DC
J9 External 6-volt battery connector
Pin 1 - Battery Positive
Pin 2 - no connector
Pin 3 - Ground
Pin 4 - Ground
J60 - Hard drive LED
Pin 1 - Signal
Pin 2 - Ground
Pin 3 - Ground
Pin 4 - Signal
W1 Reset switch
Pin 1 - Signal
Pin 2 - Ground
W2 Bios size
Pin 1-2 512K
Pin 2-3 256K (default)
W4 Turbo LED
Pin 1 - Signal
Pin 2 - Ground
W5 Turbo switch
Pin 1 - Signal
Pin 2 - Ground
W9 Non-cacheable region
Pin 1-2 D00000-DFFFFF
No connection E00000-EFFFFF
W10 Base memory size
Pin 1-2 512KB
No connection 640KB (default)
W14 Cache configuration
Pin 1-2 Direct map (32KB)
No connection Two-way set associative (64KB)
W15 Cache configuration
Pin 1-2 Direct map (32KB)
Pin 2-3 Two-way set associative (64KB)
W20 Reserved
No connection
W500 Memory configuration
Pin 1-2 256Kx9 SIMMs in Bank 0
Pin 2-3 1Mx9 SIMMs in Bank 0
W501 Video BIOS cache
No connection Video BIOS non-cacheable
Pin 1-2 Video BIOS cacheable
W510 Memory configuration
Pin 1-2 256Kx9 SIMMs in Bank 1
Pin 2-3 1Mx9 SIMMs in Bank 1
W603 Reserved
Not installed
W604 Reserved
Pin 1-2
A note on the Serial port connectors:
=====================================
There are two common pin-outs for 9-pin serial connectors. It is important to use the cables
supplied with this board. If you do not have these original cables, make sure the cable is
configured as follows:
Motherboard DB-9
1 6 ---------------
2 7 \ 1 2 3 4 5 /
3 8 \ 6 7 8 9 /
4 9 ---------
5 .
The tenth pin is normally removed from the motherboard connector.
This document is for the Mport 325 and Mport 333 Portable computers. This system is
based on the Intel 80386-25 and 80386-33 CPUs respectively. It has a built-on video
system based on the Cirrus Logic video chipset. It supports an external monitor, and
has one 16-bit slot, which can accommodate a 2/3 length card. The backplane connector
is exposed, to allow access like a desktop case for the card.
Up to 8MB is supported inside the unit, using 1Mx9 SIMMs. There are two serial and one
parallel port. The parallel port connector can be used for a parallel device, or can
be used to connect an external floppy drive.
The units come with either a 40MB Alps drive, or a 120MB Conner drive installed. One
3.5" 1.44MB floppy drive comes installed.
The video card comes with drivers for Windows 3.0, but not Windows 3.1. The drivers
were written by Cirrus Logic. There are also drivers for AutoCAD release 10, GEM 3.x,
Ventura 2.0, Lotus 1-2-3 version 2.xx, and Lotus Symphony. The built-in display has
a 640x480 VGA Monochrome screen supporting 16 levels of gray.
+=======================+
+ +
+ SWITCH SETTINGS +
+ +
+ * = Default setting +
+=======================+
SW1 Serial A enabled *UP
Serial A disabled DOWN
SW2 Serial B enabled *UP
Serial B disabled DOWN
SW3 PRT (parallel) enabled *UP
PRT (parallel) disabled DOWN
SW4 Turns on LCD display *UP
Turns off LCD display DOWN
SW5 80387 not installed *UP
80387 installed DOWN
SW6 Video controller disable *DOWN
SW7 Speaker volume high UP
Speaker volume low *DOWN
A/B/PRT switch settings
=======================
Switch Drive A: Drive B: Printer
-----------------------------------------
LEFT External Internal Disabled
Floppy Floppy
-----------------------------------------
MIDDLE Internal External Disabled
Floppy Floppy
-----------------------------------------
RIGHT Internal N/A Enabled *!!!! DEFAULT
(Default) Floppy
-----------------------------------------
Serial A and B Pin-outs
=======================
Pin Signal Description
--- ------ -----------
1 DCD Data carrier detect
2 RXD Receive data
3 TXD Transmit data
4 DTR Data terminal ready
5 GND Signal ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 RI Ring initiate
Parallel Port Pin-out
=====================
Pin Signal Description
--- ------ -----------
1 STBP* Strobe
2 DP0 Data bit 0
3 DP1 Data bit 1
4 DP2 Data bit 2
5 DP3 Data bit 3
6 DP4 Data bit 4
7 DP5 Data bit 5
8 DP6 Data bit 6
9 DP7 Data bit 7
10 ACKP* Acknowledge
11 BUSYP Busy
12 PEP Out of paper
13 SLCTP Printer selected
14 AFDP* Auto feed
15 ERRD* Error
16 INITP* Initialize
17 SLINP Select input
18 GND Ground
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
External Floppy Disk Drive Port
===============================
Pin Signal Description
--- ------ -----------
1 N/C No connection
2 INDEX
3 TRACK-00
4 WR-PROTECT Write protect
5 RD-DATA Read data
6 DSKCHANG Diskette change
7 N/C No connection
8 N/C No connection
9 N/C No connection
10 DRV2 Drive select 2
11 MOTOR2 Motor enable 2
12 WR-DATA Write data
13 WR-GATE Write enable
14 NLL High density select
15 SIDE-1-SEL Head 1 select
16 DIRECTION
17 STEP
18 GND Ground
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground
External VGA Port
=================
Pin Signal Description
--- ------ -----------
1 AR Red
2 AG Green
3 AB Blue
4 MS2 Monitor sense 2
5 GND Ground
6 GND Ground
7 GND Ground
8 GND Ground
9 N/C No connection
10 GND Ground
11 MS0 Monitor sense 0
12 MS1 Monitor sense 1
13 HSYNC Horizontal sync
14 VSYNC Vertical sync
15 N/C No connection
External Keyboard Port
======================
Pin Signal Description
--- ------ -----------
1 KBCLK Keyboard clock
2 KEYDAT Keyboard data
3 N/C No connection
4 GND Ground
5 +5V Power +5V
Shield GND Case ground
Game Port
=========
Pin Signal Description
--- ------ -----------
1 +5VDC +5V DC
2 Button4 Button1 / Joystick1
3 Position0 X-axis / Joystick1
4 GND Ground
5
6 Position1 Y-axis / Joystick1
7 Button5 Button2 / Joystick1
8 +5VDC +5V DC
9 +5VDC +5V DC
10 Button6 Button1 / Joystick2
11 Position2 X-axis / Joystick2
12 GND Ground
13 Position3 Y-axis / Joystick2
14 Button7 Button2 / Joystick2
15 +5VDC +5V DC
Hot-key combinations
====================
Keystroke Description
--------- -----------
<Ctrl><Alt><Del> Warm boots the system
<Fn><F3> or
<Ctrl><Alt><F3> Enters CMOS setup
<Fn><F4> or
<Ctrl><Alt><F4> Toggles reverse video
<Fn><F6> or
<Ctrl><Alt><F6> Toggles text mode attribute emulation
<Fn><F7> or
<Ctrl><Alt><F7> Toggles bold font for intensified text
<Fn><F8> or
<Ctrl><Alt><F8> Toggles expanded mode
<Fn><F9> or
<Ctrl><Alt><F9> Toggles CPU speed between 6MHz, 8MHz, and Full-speed
<Fn><F10> or
<Ctrl><Alt><F10> Toggles internal VGA add-in board
<Ctrl><Break> Stops a software operation
<Ctrl><C> Stops a software operation that you are currently performing
<Ctrl><S> Pauses the screen output. Press any other key to resume.
<Fn> Enables keypad overlay when held down
<Fn><Numlock> Toggles numeric keypad on/off