EM78815 Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EM78815

8 Bit Microcontroller

ELAN Microelectronics 

EM78815

8-Bit Microcontroller

5 Functional Block Diagram

VDD

D a ta

GND

AVDD

TONE

DTMF

s ig n a l

CAS

FSK

s ig n a l

FSK DTMF CAS

s ig n a l

S e ria l

IO

P ro g ra m

ROM

DATA

RAM

DATA

ROM

MCU

Dual Tone

G e n e ra to r

DTMF

R eceiver

CW

Decoder

FSK

Decoder

E n e rg y

D e te c to r

PLL

Com parator

C u rre n t

DA

A n a lo g

in p u t

DAOUT

AVSS

Fig. 2 Block Diagram 1

Xin Xout PLLC

Oscillator

Timing Control

WDT Timer

Prescalar

R1 (TCC)

Control sleep

and wake-up

on I/O port

General

RAM

R4

Interrupt

Control

ROM

R2

Stack

Instruction

Register

Instruction

Decoder

ALU

R3 ACC

R5

Data & Control Bus

Data RAM

FSK Decoder

Call Waiting Decoder

DTMDFTRDMeUFceAiLveTrONE

DuarleTcoeGnivEeeNrGEeRnAerTaOtoRr

KeytoKneEY TONE

SCCeormOiaMpSl aIPE/rOaARtRIoArALTOI/O

Current RDA

Energy Detect

Port 6

Port 7

Port 8

Port 9 Port B Port C

Port D

IOC6 R6 IOC7 R7 IOC8 R8 IOC9 R9 IOCB RB IOCC RC IOCD RD

P60~P67 P70~P77 P80~P87 P90~P97 PB0~PB7 PC0~PC7 PD0~PD7

Fig. 3 Block Diagram 2

6•

Product Specification (V2.4) 02.17.2006

(This specification is subject to change without further notice)

Share Link: