PIC16F687T-I/P 查看數據表（PDF） - Microchip Technology

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PIC16F687T-I/P

20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F631/677/685/687/689/690

FIGURE 12-2:

EUSART RECEIVE BLOCK DIAGRAM

SPEN

CREN

OERR

RCIDL

RX/DT pin

Pin Buffer

and Control

Data

Recovery

Baud Rate Generator

BRG16

+1

SPBRGH SPBRG

FOSC

÷n

Multiplier x4 x16 x64 n

SYNC 1 X 0 0 0

BRGH X 1 1 0 0

BRG16 X 1 0 1 0

The operation of the EUSART module is controlled

through three registers:

• Transmit Status and Control (TXSTA)

• Receive Status and Control (RCSTA)

• Baud Rate Control (BAUDCTL)

These registers are detailed in Register 12-1,

Register 12-2 and Register 12-3, respectively.

MSb

Stop (8)

RSR Register

7 ••• 1

LSb

0 START

RX9

FERR

RX9D

RCREG Register

FIFO

8

Data Bus

RCIF

RCIE

Interrupt

DS41262E-page 152

© 2008 Microchip Technology Inc.

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