EM78860 Ver la hoja de datos (PDF) - ELAN Microelectronics

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Fabricante

EM78860

8-BIT MICRO-CONTROLLER

ELAN Microelectronics 

EM78860

8-BIT MICRO-CONTROLLER

XIN XOUT

Oscillator/Timing

Control

R1(TCC)

Control of

sleep and

wake-up

on I/O ports

WDT Timer

Prescaler

ROM

GENERAL

RAM

RAM

R4

Interrupt

Controller

Instruction

register

Instruction

Decoder

DATA & CONTROL BUS

R2

Stack

ALU

R3

R5

ACC

2.5K RAM

PORT6

IOC6 R6

P60~P67

PORT7

IOC7 R7

P70~P77

PORT8

IOC8 R8

P80~P87

PORT9

IOC9 R9

P90~P97

PIN DESCRIPTIONS

Symbol

Type

VDD

POWER

GND

POWER

XTin

I

XTout

O

PLLC

I

COM0..COM7 O

COM8..COM15 O (PORT6)

SEG0..SEG43

SEG44..SEG51 O (PORT8)

SEG52..SEG59 O (PORT9)

INT0

PORT7(0)

INT1

PORT7(1)

INT2

PORT7(2)

INT3

PORT7(3)

P7.0~P7.7

PORT7

P6.0~P6.7

P8.0~P8.7

P9.0~P9.7

TEST

RESET

PORT6

PORT8

PORT9

I

I

Function

Power

Gound

Input pin for 32.768 kHz oscillator

Output pin for 32.768 kHz oscillator

Phase loop lock capacitor, connect a capacitor 0.01µ to 0.047µ with GND

Common driver pins of LCD drivers

Segment driver pins of LCD drivers

PORT9 AS FUNCTION KEY CAN WAKE UP WATCHDOG.

PORT7(0)~PORT7(3) signal can be interrupt signals.

PORT 7 can be INPUT or OUTPUT port each bit.

Internal Pull high function.

Key scan function.

Bit6,7 open drain function.

PORT 6 can be INPUT or OUTPUT port each bit.

And shared with Common signal.

PORT 8 can be INPUT or OUTPUT port each bit.

And shared with Common signal.

PORT 9 can be INPUT or OUTPUT port each bit.

And shared with Common signal.

Test pin into test mode , normal low

* This specification are subject to be changed without notice.

6.24.1998 3

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