HD6417750RF240DV Datasheet, PDF (853/1132 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7750 Series

SH7750, SH7750S, SH7750R Group
Section 17 Smart Card Interface
(4) Power-On and Clock
The following procedure should be used to secure the clock duty cycle after powering on.
1. The initial state is port input and high impedance. Use pull-up or pull-down resistors to fix the
potential.
2. Fix at the output specified by the CKE1 bit in the serial control register (SCSCR1).
3. Set the serial mode register (SCSMR1) and smart card mode register (SCSCMR1), and switch
to smart card mode operation.
4. Set the CKE0 bit in SCSCR1 to 1 to start clock output.
R01UH0456EJ0702 Rev. 7.02
Sep 24, 2013
Page 801 of 1076