M30620FCAFP datasheet(389/615 Pages) RENESAS

Part #	M30620FCAFP

Description	16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

PDF	615 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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Clock-Synchronous Serial I/O

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

2-72

2.4.5 Precautions for Serial I/O (in clock-synchronous serial I/O)

Transmission/reception

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________

(1) With an external clock selected, and choosing the RTS function, the output level of the RTSi

pin goes to “L” when the data-receivable status becomes ready, which informs the transmis-

________

sion side that the reception has become ready. The output level of the RTSi pin goes to “H”

________

when reception starts. So if the RTSi pin is connected to the CTSi pin on the transmission

side, the circuit can transmission and reception data with consistent timing. With the internal

_______

clock, the RTS function has no effect. Figure 2.4.16 shows an example of wiring.

Figure 2.4.16. Example of wiring

TxDi

RxDi

CLKi

CTSi

TxDi

RxDi

CLKi

RTSi

Transmitter side IC

Receiver side IC

M30620FCAFP Datasheet(PDF) 389 Page - Renesas Technology Corp