PIC18F45J50-I/SOSQTP データシートの表示（PDF） - Microchip Technology

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PIC18F45J50-I/SOSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

FIGURE 20-1:

AUTOMATIC BAUD RATE CALCULATION

BRG Value

RXx Pin

XXXXh

0000h

Start

Edge #1

Bit 0 Bit 1

Edge #2

Bit 2 Bit 3

Edge #3

Bit 4 Bit 5

Edge #4

Bit 6 Bit 7

001Ch

Edge #5

Stop Bit

BRG Clock

Set by User

ABDEN bit

Auto-Cleared

RCxIF bit

(Interrupt)

Read

RCREGx

SPBRGx

XXXXh

1Ch

SPBRGHx

XXXXh

00h

Note: The ABD sequence requires the EUSART module to be configured in Asynchronous mode and WUE = 0.

FIGURE 20-2:

BRG OVERFLOW SEQUENCE

BRG Clock

ABDEN bit

RXx Pin

ABDOVF bit

BRG Value

XXXXh

Start

Bit 0

0000h

FFFFh

0000h

DS39931D-page 332

 2011 Microchip Technology Inc.

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