EM78P860 datasheet(3/26 Pages) EMC

3 / 26 page

* This specification is subject to be changed without notice.

4.17.2000

EM78P860

8 -BIT MICRO-CONTROLLER

WDT Timer

Control of

sleep and

wake-up

on I/O ports

IOC6

PORT6

Instruction

Decoder

ROM

Interrupt

Controller

R1(TCC)

Oscillator/Timing

Control

Prescaler

RAM

Instruction

Stack

XIN

XOUT

DATA & CONTROL BUS

2.5K RAM

ACC

ALU

GENERAL

RAM

P60~P67

IOC7

PORT7

P70~P77

IOC8

PORT8

P80~P87

IOC9

PORT9

P90~P97

VI.

PIN DESCRIPTIONS

Symbol

Type

Function

VDD

POWER

Power

GND

POWER

Gound

XTin

Input pin for 32.768 kHz oscillator

XTout

Output pin for 32.768 kHz oscillator

PLLC

Phase loop lock capacitor, connect a capacitor 0.01

µ to 0.047µ with GND

COM0..COM7

Common driver pins of LCD drivers

COM8..COM15

O (PORT6)

SEG0..SEG43

Segment driver pins of LCD drivers

SEG44..SEG51

O (PORT8)

SEG52..SEG59

O (PORT9)

PORT9 AS FUNCTION KEY CAN WAKE UP WATCHDOG.

INT0

PORT7(0)

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

INT1

PORT7(1)

INT2

PORT7(2)

INT3

PORT7(3)

P7.0~P7.7

PORT7

PORT 7 can be INPUT or OUTPUT port each bit.

Internal Pull high function.

Key scan function.

Bit6,7 open drain function.

P6.0~P6.7

PORT6

PORT 6 can be INPUT or OUTPUT port each bit.

And shared with Common signal.

P8.0~P8.7

PORT8

PORT 8 can be INPUT or OUTPUT port each bit.

And shared with Common signal.

P9.0~P9.7

PORT9

PORT 9 can be INPUT or OUTPUT port each bit.

And shared with Common signal.

TEST

Test pin into test mode , normal low

RESET

Fig. 2 Functional block diagram2

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