M16C6K9 Datasheet, PDF (124/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
Clock asynchronous serial I/O (UART) mode
Fig.GA-25 shows the example of connecting the SIM interface. Connect TXD2 and RXD2 and apply pull-up.
Microcomputer
TxD2
RxD2
SIM card
Fig.GA-25 Connecting the SIM interface
Rev.1.00 Jun 06, 2003 page 124 of 290