LS3103 データシートの表示（PDF） - BOWIN ELECTRONIC CO.

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LS3103

Simple LCD micro-controller

BOWIN ELECTRONIC CO. 

LSI

Functional Description

LS3103

1. RC Oscillator /Crystal

The LS3103 can use either a crystal oscillator or RC oscillator to provide the internal timing by

mask option.

2. Program ROM

The LSI3103 has internal 1Kx12 bit ROM providing simple operation. It has four internal stack.

3. Interrupt Control

The LSI3103 has 5 different sources of interrupt, namely, POWERUP, F4HZ, F16HZA, F16HZS

and F1HZ. The starting address of the interrupt are as follow :

Interrupt

POWERUP

F1HZ

F4HZ

F16HZA

F16HZS

Address

0x3ff

0x3fe

0x3fc

0x3f8

0x3f1

The system generates 16 interrupts for F16HZS in one second but only 11 interrupts for F16HZA.

The other 5 interrupts goes to F4HZ (4) and F1HZ (1) interrupts.

3. RAM

The system has 73x4bit of program RAM with IO address as follows.

Address

0-0fH

10H-1fH

20-2fH

30H

31H

32H

33H

34H-3fH

54H-56H

58H-5AH

5CH-5EH

73H

Description

RAM

Display RAM

RAM

rptrl

rptrh

rptr1

Beep Control

RAM

Display RAM

Display RAM

Display RAM

IOX Register

Initialize

undefined

undefined

undefined

undefined

undefined

undefined

0

Undefined

Undefined

Undefined

Undefined

0

Address 31H:30H forms a 8 bit address for indirect read/write operation.

Address 32H:30H forms a 8 bit address for indirect read/write operation.

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