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M16C62_N Datasheet, PDF (378/621 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY | |||
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UART
Example of wiring
Microcomputer
RXDi
RTSi
Mitsubishi microcomputers
M16C / 62 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Transmitter side IC
TXD
Port
Example of operation
BRGi's count
source
Receive enable
bit (RE)
RxDi
(1) Reception enabled
(2) Start reception
â1â
â0â
Start bit
Sampled âLâ
Transfer clock
(4) Data is
read
(3) Receiving is
completed
D0
D1
D7 Stop bit
Receive data taken in
Receive
â1â
complete flag
(RI)
â0â
RTSi
âHâ
âLâ
Receive interrupt â1â
request bit
â0â
(IR)
Reception started when transfer
clock is generated by falling edge
of start bit
Transferred from UARTi receive register
to UARTi receive buffer register
Cleared to â0â when interrupt request is accepted, or cleared by software
Timing of transfer data 8 bits long applies to the following settings :
â¢Transfer data length is 8 bits.
â¢Parity is disabled.
â¢One stop bit
â¢RTS function is selected.
Figure 2.5.11. Operation timing of reception in UART mode
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