PIC17C7XX_13 Datasheet, PDF(119/306 Page) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

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PIC17C7XX_13 Datasheet, PDF (119/306 Pages) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

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PIC17C7XX

FIGURE 14-1:

USART TRANSMIT

Sync

Master/Slave

CK/TX

DT

Sync/Async

Sync/Async

TSR

Start 0 1 ï·ï ï·ï ï· 7 8 Stop

BRG

ï¸4

Sync/Async

ï¸ 16

Clock

TXREG 0 1 ï·ï ï·ï ï· 7

Data Bus

Load

8

Bit Count

TXEN/

Write to TXREG

Interrupt

TXSTA<0>

TXIE

FIGURE 14-2:

USART RECEIVE

OSC

BRG

Buffer

CK

Logic

SPEN

Buffer

Logic

RX

ï¸4

Master/Slave

Sync

Sync/Async

Async/Sync

ï¸ 16

Majority

Detect

Clock

Data

Enable

Bit Count

START

Detect

RSR

MSb

LSb

Stop 8 7 ï·ï ï·ï ï· 1 0

Interrupt

RCIE

SREN/

CREN/

Start_Bit

RX9

Async/Sync

RCREG

FERR

FERR

RX9D 7 ï·ï ï·ï ï· 1 0

RX9D 7 ï·ï ï·ï ï· 1 0

FIFO

Logic

Clk

FIFO

Data Bus

ï£ 1998-2013 Microchip Technology Inc.

DS30289C-page 119

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