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M24/M24SP

OLIVETTI

M24/M24SP

Processor

8086

Processor Speed

8/10MHz

Chip Set

Unidentified

Max. Onboard DRAM

640KB

Cache

None

BIOS

Unidentified

Dimensions

355mm x 304mm

I/O Options

Floppy drive interface, parallel port, serial ports (2)

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Floppy drive interface

CN1

Parallel port

J4

Serial port 1

J3

Serial port 2

J5

USER CONFIGURABLE SETTINGS

Function

Switch

Position

256KB memory chip not used

DIPSW0/5

On

 

256KB memory chip used

DIPSW0/5

Off

NPU disabled

DIPSW0/6

On

 

NPU enabled

DIPSW0/6

Off

UART type select 8250

DIPSW0/7

On

 

UART type select 8530

DIPSW0/7

Off

BIOS type select 2732 (M24 only)

DIPSW0/8

On

 

BIOS type select 2764 (M24 only)

DIPSW0/8

Off

No memory installed in Bank 0 (M24SP only)

DIPSW0/8

On

 

Memory installed in Bank 0 (M24SP only)

DIPSW0/8

Off

Floppy drive tracks per inch select 48 (320KB drive)

DIPSW1/1

On

 

Floppy drive tracks per inch select 96 (640KB drive)

DIPSW1/1

Off

Floppy drive start up speed select slow

DIPSW1/2

On

 

Floppy drive start up speed select fast

DIPSW1/2

Off

HDU ROM code select on mainboard

DIPSW1/3

On

 

HDU ROM code select on controller

DIPSW1/3

Off

Display controller select standard

DIPSW1/4

On

 

Display controller select non standard

DIPSW1/4

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

128KB

(18) 44256

NONE

256KB

(18) 44256

(18) 44256

512KB

(18) 44100

NONE

640KB (M24SP only)

(18) 44100

(18) 44256

640KB

(18) 44256

(18) 44100

DRAM SWITCH CONFIGURATION

Size

DIPSW0/1

DIPSW0/2

DIPSW0/3

DIPSW0/4

128KB

Off

On

On

On

256KB

On

Off

On

On

384KB

Off

Off

On

On

512KB (mainboard only)

On

On

On

Off

512KB (mainboard and expansion card)

On

On

Off

On

640KB

Off

On

Off

On

640KB (mainboard only)

Off

On

On

Off

VIDEO CONFIGURATION

Type

DIPSW1/5

DIPSW1/6

IBM B/W display

Off

Off

40 x 25

Off

On

80 x 25

On

Off

FLOPPY DRIVE CONFIGURATION

Drives installed

DIPSW1/7

DIPSW1/8

1

On

On

2

Off

On