M16C30_02 Datasheet, PDF (105/178 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Clock synchronous serial I/O mode
Mitsubishi microcomputers
M16C / 30 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Table 1.16.3. Specifications of clock synchronous serial I/O mode (2)
Item
Select function
Specification
• CLK polarity selection
Whether transmit data is output/input timing at the rising edge or falling edge
of the transfer clock can be selected
• LSB first/MSB first selection
Whether transmission/reception begins with bit 0 or bit 7 can be selected
• Continuous receive mode selection
Reception is enabled simultaneously by a read from the receive buffer register
• Transfer clock output from multiple pins selection (UART1)
UART1 transfer clock can be chosen by software to be output from one of
the two pins set
• Switching serial data logic (UART2)
Whether to reverse data in writing to the transmission buffer register or
reading the reception buffer register can be selected.
• TxD, RxD I/O polarity reverse (UART2)
This function is reversing TxD port output and RxD port input. All I/O data
level is reversed.
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