PIC18F23K20-E/MLQTP MICROCHIP [Microchip Technology], PIC18F23K20-E/MLQTP Datasheet - Page 230

• Manufacturer Part Number: PIC18F23K20-E/MLQTP
• Description: 28/40/44-Pin Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2XK20/4XK20
FIGURE 18-2:
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
Register 18-2 and Register 18-3, respectively.
For all modes of EUSART operation, the TRIS control
bits corresponding to the RX/DT and TX/CK pins should
be set to ‘1’. The EUSART control will automatically
reconfigure the pin from input to output, as needed.
DS41303B-page 228
BRG16
Baud Rate Generator
SPBRGH
registers
SPBRG
RX/DT pin
are
+ 1
EUSART RECEIVE BLOCK DIAGRAM
detailed
Multiplier
BRG16
BRGH
SYNC
Pin Buffer
and Control
in
SPEN
1 X 0 0
X 1 1 0
X 1 0 1
x4
Register 18-1,
x16 x64
Advance Information
F
OSC
0
0
0
n
Data
Recovery
÷ n
FERR
Stop
MSb
CREN
(8)
RX9D
7
RX9
RSR Register
© 2007 Microchip Technology Inc.
RCREG Register
• • •
OERR
8
1
RCIF
RCIE
Data Bus
0
START
LSb
RCIDL
Interrupt
FIFO