Datasheet

CHAPTER 13 SERIAL INTERFACE UART0
User’s Manual U18698EJ1V0UD
315
Figure 13-1. Block Diagram of Serial Interface UART0
INTST0
INTSR0
Transmit shift register 0
(TXS0)
Receive shift register 0
(RXS0)
Receive buffer register 0
(RXB0)
Asynchronous serial
interface reception error
status register 0 (ASIS0)
Asynchronous serial
interface operation mode
register 0 (ASIM0)
Baud rate generator
control register 0
(BRGC0)
8-bit timer/
event counter
50 output
Registers
Selector
Baud rate
generator
Baud rate
generator
Reception unit
Reception control
Filter
Internal bus
Transmission control
Transmission unit
7
7
UART0 output signal
Output latch
(P13)
PM13
Selector
PF13
Port function
register 1 (PF1)
T X D0/KR4/
P13/<TxD6>
RxD0/KR3/P12/<RxD6>
fPRS/2
5
fPRS/2
3
fPRS/2
fXCLK0