PIC16F722 Datasheet, PDF (146/302 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC16F72X/PIC16LF72X
FIGURE 16-2:
AUSART RECEIVE BLOCK DIAGRAM
SPEN
CREN
OERR
RX/DT
Baud Rate Generator
Pin Buffer
and Control
FOSC
Data
Recovery
÷n
+1
SPBRG
Multiplier x4 x16 x64 ⁿ
SYNC 1 0 0
BRGH x 1 0
The operation of the AUSART module is controlled
through two registers:
• Transmit Status and Control (TXSTA)
• Receive Status and Control (RCSTA)
These registers are detailed in Register 16-1 and
Register 16-2, respectively.
MSb
Stop (8)
RSR Register
7 ••• 1
LSb
0 START
RX9
FERR
RX9D
RCREG Register
FIFO
8
Data Bus
RCIF
RCIE
Interrupt
DS41341E-page 146
© 2009 Microchip Technology Inc.