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PIC16(L)F1508/9
DS40001609E-page 224
2011-2015 Microchip Technology Inc.
FIGURE 22-2:
EUSART RECEIVE BLOCK DIAGRAM
The operation of the EUSART module is controlled
through three registers:
• Transmit Status and Control (TXSTA)
• Receive Status and Control (RCSTA)
• Baud Rate Control (BAUDCON)
These registers are detailed in
and
, respectively.
When the receiver or transmitter section is not enabled
then the corresponding RX or TX pin may be used for
general purpose input and output.
÷ n
Multiplier
x4
SYNC
BRGH
BRG16
x16
x64
1
1
1
1
1
x
x
x 0
0
0
0
0
0
0
n
+ 1
SPBRGH SPBRGL
Baud Rate Generator
F
OSC
BRG16
SPEN
CREN
OERR
RCIDL
Pin Buffer
and Control
Data
Recovery
RX/DT pin
Stop
(8)
7
Start
0
1
MSb
LSb
RSR Register
RX9
FERR
RX9D
RCREG Register
FIFO
8
Data Bus
RCIE
RCIF
Interrupt
Rev. 10-000114A
7/30/2013