M16C80 Datasheet, PDF (165/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
19. Clock-asynchronous serial I/O mode (compliant with the SIM interface)
Figure 19.4 shows the example of connecting the SIM interface. Connect TxDi and RxDi and apply pull-
up.
Microcomputer
TxDi
RxDi
(Note) _{SIM card}
Note :TxDi pin is N-channel open drain and needs a pull-up resistance.
Figure 19.4 Connecting the SIM interface
Rev.1.00 Aug. 02, 2005 ^{Page 154} of 329
REJ09B0187-0100