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IPCCPU Motherboard Settings and Configuration






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.








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