Rainbow-electronics AT89LS8252 Manual do Utilizador descarregar pdf (Página 3)

AT89LS8252

4-139

Block Diagram

PORT 2 DRIVERS

PORT 2

LATCH

P2.0 - P2.7

FLASH

PORT 0

LATCH

RAM

EEPROM

PROGRAM

ADDRESS

REGISTER

BUFFER

PC

INCREMENTER

PROGRAM

COUNTER

DPTR

INSTRUCTION

REGISTER

B

REGISTER

INTERRUPT, SERIAL PORT,

AND TIMER BLOCKS

STACK

POINTER

ACC

TMP2 TMP1

ALU

PSW

TIMING

AND

CONTROL

PORT 1 DRIVERS

P1.0 - P1.7

PORT 3

LATCH

PORT 3 DRIVERS

P3.0 - P3.7

OSC

GND

V

CC

PSEN

ALE/PROG

EA / V

PP

RST

RAM ADDR.

REGISTER

PORT 0 DRIVERS

P0.0 - P0.7

PORT 1

LATCH

WATCH

DOG

SPI

PORT

PROGRAM

LOGIC

1 2 3 4 5 6 7 8 ... 30 31

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