EM73866 Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EM73866

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

ELAN Microelectronics 

EM73866

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

PIN DESCRIPTIONS

Symbol

Pin-type

P8.0(INT1)/WAKEUPA I/O-S

P8.2(INT0)/WAKEUPC

COM(0..3)

--

SEG(0..29)

--

V1, V2, V3, VRLC

--

Function

2-bit bidirection I/O pins with interrupt 0, 1 external intput and

IDLE/STOP releasing function

mask option : wakeup disable, low current push-pull

wakeup disable, normal current push-pull

wakeup disable, open-drain

wakeup enable, low current push-pull

wakeup enable, normal current push-pull

LCD common pins

LCD segment pins

LCD bias pins

FUNCTION DESCRIPTIONS

PROGRAM ROM ( 8K X 8 bits )

8 K x 8 bits program ROM contains user's program and some fixed data.

The basic structure of the program ROM may be categorized into 5 partitions.

1. Address 0000h: Reset start address.

2. Address 0002h - 000Ch : 6 kinds of interrupt service routine entry addresses.

3. Address 000Eh - 0086h : SCALL subroutine entry address, only available at 000Eh, 0016h, 001Eh, 0026h, 002Eh,

0036h, 003Eh, 0046h, 004Eh, 0056h, 005Eh, 0066h, 006Eh, 0076h, 007Eh, 0086h.

4. Address 0000h - 07FFh : LCALL subroutine entry address.

5. Address 0000h - 1FFFh : Except used as above function, the other region can be used as user's program and

data region.

* This specification are subject to be changed without notice.

12.29.1999 4

Share Link: