Maxim-integrated Ultra-High-Speed Flash Microcontroller Uživatelský manuál stáhnout pdf (Strana 147)

12-13

SBUF

DIVIDE-

BY-2

LOAD

CLOCK

TRANSMIT SHIFT REGISTER

P3.1

LATCH

TXD

RECEIVE DATA BUFFER

CLOCK

RECEIVE SHIFT REGISTER

READ

SERIAL

BUFFER

BAUD

CLOCK

LOAD

SERIAL

BUFFER

LOAD

INTS

SERIAL I/O

CONTROL

SHIFT

FLAG =

SCONx.1

RXD

SERIAL

INTERRUPT

LDSBUF

RDSBUF

STOP

START

STOP

START

RB8 =

SCONx.3

FLAG =

SCONx.0

DIVIDE-

BY-16

BIT

DETECTION

DATA BUS

SBUF

RESET

DIVIDE-

BY-16

SMOD_0 =

PCON.7

SMOD_1 =

WDCON.7

TIMER 2

OVERFLOW

TIMER 1

OVERFLOW

AVAILABLE TO SERIAL

PORT 0 ONLY

TCLK =

T2CON.4

RCLK =

T2CON.5

TB8 =

SCONx.

TRANSMIT TIMING

LDSBUF

SHIFT

EIVE TIMIN

BIT DETECTOR

SAMPLING

SHIFT

TXD

D0 D1 D2 D3 D4 D5 D6 D7 STOPSTART

RXD

D1 D2 D3 D4 D5 D6 D7

START

STOP

TB8

RB8

Figure 12-4. Serial Port Mode 3

Ultra-High-Speed Flash

Microcontroller User’s Guide

Maxim Integrated

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