UPD78218A Просмотр технического описания (PDF) - NEC => Renesas Technology

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производитель

UPD78218A

8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD78217A, 78218A

INTERNAL BLOCK DIAGRAM

NMI

INTP0-INTP5

RXD

TXD

ASCK

SCK

SO/SB0

SI

INTP3

TO0

TO1

INTP0

INTP1

INTP2

TO2

TO3

P00-P03

P04-P07

AN0-AN7

AVREF

AVSS

INTP5

PROGRAMMABLE

INTERRUPT

CONTROLLER

UART

BAUD RATE

GENERATOR

CLOCKED

SERIAL

INTERFACE

TIMER/COUNTER

(16 BITS)

TIMER/COUNTER

CHANNEL-1

(PS + 8 BITS)

TIMER/COUNTER

CHANNEL-2

(PS + 8 BITS)

TIMER/COUNTER

CHANNEL-3

(PS + 8 BITS)

REAL-TIME

OUTPUT PORT

(4 BITS × 2)

A/D CONVERTER

ADDRESS BUS

PC

ALU

TEMPORARY

REGISTERS

SP

PSW

BOOLEAN

PROCESSOR

• RAM (256 Bytes)

• GR

• MACRO

SERVICE

CHANNEL

DATA BUS

ROM

• MICRO ROM

• MICRO–

SEQUENCER

PORT

RAM

P0

P00

-P07

P2

P20

-P27

P3

P30

-P37

P4

P5 P6 P6 P7

Note

P40

Note

P50 P60

P64Note P70

-P47 -P57 -P63 -P67 -P75

Caution Inernal ROM/RAM capacity varies depending on the product.

Note In case of the µPD78217A, P40 to P47, P50 to P57, P64 and P65 cannot be used as ports.

A16-A19

(Expansion)

A8-A15

AD0-AD7

RD

WR

WAIT

REFRQ

ASTB

X1

X2

RESET

EA

VDD

VSS

8

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