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SH7145F

Synchronous Serial Data Transmission

REJ06B0352-0100O/Rev.1.00 March 2004 Page 2 of 16

1. Specifications

As shown in figure 1, synchronous serial data transmission is performed using channel 0 (ch0) of

the SCI module of the SH7145F. In this task example 3 bytes of serial data are transmitted from

the SH7145. The communication format is 8-bit fixed data length, LSB first, with a logical bit rate

of 250,000 bps.

SH7145

TXD RXD

Serial data

transfer

target MCU

SCI

(ch0)

3.3 V 3.3 V

SCK SCK

Synchronous clock

Serial data

Figure 1 Synchronous Serial Data Transmission by SH7145

1 2 3 4 5 6 7 ... 15 16

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Renesas Asynchronous SH7145F Manuale Utente Pagina 2