Hitachi SH7750 Hardware Manual page 779

Sh7750 series superh risc engine

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(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

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.

Rev. 6.0, 07/02, page 729 of 986

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