DS89C420 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS89C420

Ultra-High-Speed Microcontroller

Dallas Semiconductor -> Maxim Integrated 

Figure 1. Block Diagram

DS89C420

Control &

Sequencer

Internal

Registers

Decoder

IR

Internal Control Bus

Interrupt

CPU

SFRs

DPTR

DPTR1

SP

PC

AR Inc

AR

Address Bus

Serial I/O

Timer /

Counters

Watchdog Timer

&

Power Manager

Clock &

Reset

1Kx 8

RAM

16K x 8

Flash

I/O Ports

Memory

Control

ROM

Loader

P0 P1 P2 P3

3 of 59

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