M16C62_M Datasheet, PDF (394/615 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

UART
Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
The following are examples in which functions (a) to (e) are chosen:
_______
• Transmission WITH: CTS function, WITHOUT: other functions .............................................. P2-84
_______
• Reception WITH: RTS function, WITHOUT: other functions ................................................... P2-88
Also, the SIM interface is used by adding some extra settings in UART2's clock-asynchronous serial
I/O mode. Direct or inverse format is selected by connecting SIM card.
• Transmission WITH: direct format ........................................................................................... P2-92
• Reception WITH: direct format ................................................................................................ P2-96
(6) Input to the serial I/O and the direction register
To input an external signal to the serial I/O, set the direction register of the relevant port to input.
(7) Pins related to the serial I/O
_________ _________ __________
• CTS0, CTS1, CTS2 pins
_________ _________ _________
• RTS0, RTS1, RTS2 pins
_______
:Input pins for the CTS function
_______
:Output pins for the RTS function
• CLK0, CLK1 pins
:Input pins for the transfer clock
• RxD0, RxD1, RxD2 pins
:Input pins for data
• TxD0, TxD1, TxD2 pins
:Output pins for data
Since TxD2 pin is N-channel open drain, this pin needs pull-up resistor.
2-77