M16C26 Datasheet, PDF (126/239 Pages) Renesas Technology Corp – 16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

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Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative
Clock Synchronous Serial I/O Mode
and
subject to change.
SINGLE-CHIP 16-BIT
M16C/26 Group
CMOS MICROCOMPUTER
Table 1.15.3. Specifications of clock synchronous serial I/O mode (2)
Item
Specification
Select function
• CLK polarity selection
Whether transmit data output/input timing is 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 automatically after the receive buffer register is
read
• Switching serial data logic (UART2)
Whether to invert data (1's complement) when writing to the
transmission buffer register or reading the reception buffer register can
be selected.
• TxD, RxD I/O polarity reverse (UART2)
This function inverts the TxD port output and RxD port input. All I/O
data level is reversed.
• 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
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