Toshiba TLCS-900/H1 Series Manual page 296

Original cmos 32-bit microcontroller

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Table of Contents

(9) Transmission controller

• In I/O Interface Mode

In SCLK Output Mode with the setting SC0CR<IOC> = "0", the data in the

Transmission Buffer is output one bit at a time to the TXD0 pin on the rising edge

or falling of the shift clock which is output on the SCLK0 pin, according to the

SC0CR<SCLKS> setting.

In SCLK Input Mode with the setting SC0CR<IOC> = "1", the data in the

Transmission Buffer is output one bit at a time on the TXD0 pin on the rising or

falling edge of the SCLK0 input, according to the SC0CR<SCLKS> setting.

• In UART Mode

When transmission data sent from the CPU is written to the Transmission

Buffer, transmission starts on the rising edge of the next TXDCLK.