M16C26A Datasheet, PDF (149/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
13. Serial I/O
Note
UART0 is not available in the 42-pin package.
Serial I/O is configured with three channels: UART0 to UART2.
13. Serial I/O
13.1. UARTi (i=0 to 2)
UARTi each have an exclusive timer to generate a transfer clock, so they operate independently of each
other.
Figure 13.1.1 shows the block diagram of UARTi. Figures 13.1.2 and 13.1.3 shows the block diagram of
the UARTi transmit/receive.
UARTi has the following modes:
• Clock synchronous serial I/O mode
• Clock asynchronous serial I/O mode (UART mode).
• Special mode 1 (I²C bus mode) : UART2
• Special mode 2 : UART2
• Special mode 3 (Bus collision detection function, IEBus mode) : UART2
• Special mode 4 (SIM mode) : UART2
Figures 13.1.4 to 13.1.9 show the UARTi-related registers.
Refer to tables listing each mode for register setting.
Rev. 2.00 Feb.15, 2007 ^{page 132} of 329
REJ09B0202-0200