MP3300 Motherboard Settings and Configuration

MITSUBISHI ELECTRONICS

MP3300

Processor
80386SX
Processor Speed
16MHz
Chip Set
None
Max. Onboard DRAM
1MB (location unknown)
Cache
None
BIOS
Mitsubishi/Phoenix
Dimensions
330mm x 218mm
I/O Options
32-bit external memory slot, floppy drive interface,
parallel port, serial port (2)
NPU Options
80387SX

CONNECTIONS
Purpose
Location
Purpose
Location
Parallel port
P1
Floppy drive interface
P4
Serial port (COM1)
P2
32-bit external memory slot
S1
Serial port (COM2)
P3

USER CONFIGURABLE SETTINGS
Function
Switch
Position
»
Floppy interface enabled
SW1/switch 1
off

Floppy interface disabled
SW1/switch 1
on
»
Factory configured - do not alter
SW1/switch 2
off
»
Factory configured - do not alter
SW1/switch 4
off
»
I/O bus speed select ATCLK/8
SW1/switch 6
on

I/O bus speed select ATCLK/6
SW1/switch 6
off
»
Keyboard select enhanced enabled
SW1/switch 7
on

Keyboard select enhanced disabled
SW1/switch 7
off
»
Monitor type select monochrome
SW1/switch 8
off

Monitor type select color
SW1/switch 8
on

MEMORY MODE CONFIGURATION
Mode
Size
SW1/switch 3
SW1/switch 5

A
512KB (base)
Off
On
»
C
640KB (base)
Off
Off

D
512KB (external)
On
Off

SERIAL PORT CONFIGURATION
COM
SW2/switch 1
SW2/Switch 2
»
COM1
Off
On

COM2
Off
Off

Disabled
On
On

PARALLEL PORT CONFIGURATION
LPT
SW2/switch 3
SW2/Switch 4
»
LPT1
Off
Off

LPT2
Off
On

LPT3
On
Off

Disabled
On
On

DRAM CONFIGURATION
Base Address
SW1
SW2
SW3
SW4
SW5
SW6
SW6
SW7
1M
on
on
on
on
off
on
off
off
1.5M
on
on
on
on
off
off
off
off
2M
on
on
on
off
on
on
off
off
2.5M
on
on
on
off
on
off
off
off
3M
on
on
on
off
off
on
off
off
3.5M
on
on
on
off
off
off
off
off
4M
on
on
off
on
on
on
off
off
4.5M
on
on
off
on
on
off
off
off
5M
on
on
off
on
off
on
off
off
5.5M
on
on
off
on
off
off
off
off
6M
on
on
off
off
on
on
off
off
6.5M
on
on
off
off
on
off
off
off
Note: Memory expansion board is 4MB.

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MP3300 Motherboard Settings and Configuration

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Processor	80386SX
Processor Speed	16MHz
Chip Set	None
Max. Onboard DRAM	1MB (location unknown)
Cache	None
BIOS	Mitsubishi/Phoenix
Dimensions	330mm x 218mm
I/O Options	32-bit external memory slot, floppy drive interface, parallel port, serial port (2)
NPU Options	80387SX

CONNECTIONS
Purpose	Location	Purpose	Location
Parallel port	P1	Floppy drive interface	P4
Serial port (COM1)	P2	32-bit external memory slot	S1
Serial port (COM2)	P3

USER CONFIGURABLE SETTINGS
Function		Switch	Position
»	Floppy interface enabled	SW1/switch 1	off
	Floppy interface disabled	SW1/switch 1	on
»	Factory configured - do not alter	SW1/switch 2	off
»	Factory configured - do not alter	SW1/switch 4	off
»	I/O bus speed select ATCLK/8	SW1/switch 6	on
	I/O bus speed select ATCLK/6	SW1/switch 6	off
»	Keyboard select enhanced enabled	SW1/switch 7	on
	Keyboard select enhanced disabled	SW1/switch 7	off
»	Monitor type select monochrome	SW1/switch 8	off
	Monitor type select color	SW1/switch 8	on

MEMORY MODE CONFIGURATION
Mode		Size	SW1/switch 3	SW1/switch 5
	A	512KB (base)	Off	On
»	C	640KB (base)	Off	Off
	D	512KB (external)	On	Off

SERIAL PORT CONFIGURATION
COM		SW2/switch 1	SW2/Switch 2
»	COM1	Off	On
	COM2	Off	Off
	Disabled	On	On

PARALLEL PORT CONFIGURATION
LPT		SW2/switch 3	SW2/Switch 4
»	LPT1	Off	Off
	LPT2	Off	On
	LPT3	On	Off
	Disabled	On	On

DRAM CONFIGURATION
Base Address	SW1	SW2	SW3	SW4	SW5	SW6	SW6	SW7
1M	on	on	on	on	off	on	off	off
1.5M	on	on	on	on	off	off	off	off
2M	on	on	on	off	on	on	off	off
2.5M	on	on	on	off	on	off	off	off
3M	on	on	on	off	off	on	off	off
3.5M	on	on	on	off	off	off	off	off
4M	on	on	off	on	on	on	off	off
4.5M	on	on	off	on	on	off	off	off
5M	on	on	off	on	off	on	off	off
5.5M	on	on	off	on	off	off	off	off
6M	on	on	off	off	on	on	off	off
6.5M	on	on	off	off	on	off	off	off
Note: Memory expansion board is 4MB.