PIC18F47J53 Datasheet, PDF (354/586 Pages) Microchip Technology – 28/44-Pin, High-Performance USB Microcontrollers with nanoWatt XLP Technology

PIC18F47J53 FAMILY
FIGURE 21-1:
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 21-2:
BRG OVERFLOW SEQUENCE
BRG Clock
ABDEN bit
RXx pin
ABDOVF bit
BRG Value
XXXXh
Start
Bit 0
0000h
FFFFh
0000h
DS39964B-page 354
Preliminary
 2010 Microchip Technology Inc.