M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 361

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

Clock-Synchronous Serial I/O
346
Transmission/reception
Figure 2.4.16. Example of wiring
2.4.5 Precautions for Serial I/O (in clock-synchronous serial I/O)
(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.
Transmitter side IC
_______
CTS
RxD
CLK
TxD
i
i
i
i
________
RTS
RxD
CLK
_______
TxD
Receiver side IC
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
i
i
i
i
________
________
Mitsubishi microcomputers
M16C / 62 Group
________