HwMuseum | Index

DECISION COMPUTER INTERNATIONAL CO., LTD.

IPCCPU

Processor

Z80

Processor Speed

9.83MHz

Chipset

Unidentified

Maximum Onboard Memory

32KB SRAM/32KB EPROM

BIOS

Unidentified

Video Chipset

Unidentified

Maximum Video Memory

Unidentified

Video Types Supported

LCD display

Highest Resolution Supported

4 x 20 (text only)

I/O Options

Serial ports (2), LCD video out, expansion bus

Dimensions

80 x 100mm

CONNECTIONS

Function

Label

Function

Label

External battery connector

JP6

Expansion bus

P7

5V DC power in

P1

Reset switch

P9

Generic serial port 2

P3

LCD video out

P10

Generic serial port 1

P4

IC5 voltage adjustment

RV1

Keyboard connector (IPCKEY/IPCKEYM)

P5

LCD contrast adjustment

RV2

Note:RV1 should be adjusted so that pin 4 of IC5 is 1.3V and pin 5 is equal to the voltage going into P1. P3 and P4 are not RS-232 serial. The interface type is provided by one of the boards on the sections for the IPC232ST, IPC232CL, and IPC422/485 cards.

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

System interrupt timers enabled

JP1

Closed

 

System interrupt timers disabled

JP1

Open

»

MAX960 chip not installed in IC5

JP2

Closed

 

MAX960 chip installed in IC5

JP2

Open

»

Watchdog timer disabled

JP3

Open

 

Watchdog timer enabled

JP3

Closed

»

Power fail interrupt disabled

JP4

Open

 

Power fail interrupt enabled

JP4

Closed

»

Real-time clock interrupt disabled

JP5

Open

 

Real-time clock interrupt enabled

JP5

Closed

»

Keyboard enabled

JP7

Pins 2 & 3 closed

 

Keyboard disabled

JP7

Pins 1 & 2 closed

Card Type

Serial

Chipset

Unidentified

I/O Options

Serial port

CONNECTIONS

Function

Label

Function

Label

Header to main board P3 or P4

P1

RS-232 or current loop serial port

P3

DC power in

P2

   

IPCCPU (IPC422/485 SERIAL CARD)

Card Type

Serial

Chipset

Unidentified

I/O Options

Serial port

CONNECTIONS

Function

Label

Function

Label

Header to main board P3 or P4

P1

RS-422 or RS-485 serial port

P3

DC power in

P2

   

SERIAL PORT CONFIGURATION

Setting

JP2

JP3

RS-422

Pins 2 & 3 closed

Pins 2 & 3 closed

RS-485

Pins 1 & 2 closed

Open

RECEIVER ENABLE SELECTION

Setting

JP1/A

JP1/B

JP1/C

RTS enables receiver

Closed

Open

Open

DTR enables receiver

Open

Open

Closed

Receiver always enabled

Open

Closed

Open

Note:The receiver may not be always enabled in RS-485 mode.

MISCELLANEOUS TECHNICAL NOTE

No information is available on the IPC232FS card.