PIC17C42 Microchip Technology, PIC17C42 Datasheet - Page 85

• Manufacturer Part Number: PIC17C42
• Description: High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
• Manufacturer: Microchip Technology

FIGURE 13-3: USART TRANSMIT
FIGURE 13-4: USART RECEIVE
RX
1996 Microchip Technology Inc.
CK
CK/TX
DT
OSC
Buffer
Logic
Buffer
Logic
SPEN
BRG
Sync/Async
TXREG
4
Start 0 1
Master/Slave
TSR
Sync
0 1
Majority
Data Bus
Detect
Sync/Async
16
Async/Sync
Sync/Async
7
7 8 Stop
8
TXSTA<0>
Clock
Data
FERR
FERR
Bit Count
Clock
BRG
Load
RX9
Stop
Bit Count
RX9D
RX9D
START
Detect
Sync/Async
MSb
TXIE
8
RSR
4
7
enable
7
7
RCREG
TXEN/
Write to TXREG
Async/Sync
Interrupt
1
1
1
LSb
Data Bus
16
PIC17C4X
0
0
0
Master/Slave
Sync
DS30412C-page 85
Clk
FIFO
Logic
FIFO
RCIE
SREN/
CREN/
Start_Bit
Interrupt