Toshiba TLCS-900/H1 Series Manual page 308

Original cmos 32-bit microcontroller

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Table of Contents

Transmission

In SCLK output mode 8-bit data and a synchronous clock are output on the TXD0

and SCLK0 pins respectively each time the CPU writes the data to the Transmission

Buffer. When all data is output, INTES0 <ITX0C> will be set to generate the INTTX0

Timing of transmited

data writing

SCLK0 output

(<SCLKS> = "0":

rising edge mode)

SCLK0 output

(<SCLKS> = "1":

falling edge mode)

(INTTX0 interrupt

Figure 3.14.20 Transmitting Operation in I/O Interface Mode (SCLK0 Output Mode)

In SCLK Input Mode, 8-bit data is output on the TXD0 pin when the SCLK0 input

becomes active after the data has been written to the Transmission Buffer by the CPU.

When all data is output, INTES0 <ITX0C> will be set to generate INTTX0 interrupt.

(<SCLKS> = "0":

rising edge mode)

(<SCLKS> = "1":

falling edge mode)

(INTTX0 intterrupt

Figure 3.14.21 Transmitting Operation in I/O Interface Mode (SCLK0 Input Mode)

(Internal clock