M306H7MG-XXXFP Datasheet, PDF (93/329 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

M306H7MG-XXXFP/MC-XXXFP/FGFP
10. Serial I/O
Serial I/O is configured with five channels: UART0 to UART2, SI/O3 and SI/O4.
10. SERIAL I/O
10.1 UARTi (i=0 to 2)
UARTi each have an exclusive timer to generate a transfer clock, so they operate independently of each other.
Figure 10.1 shows the block diagram of UARTi. Figures 10.2 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 mode)
• Special mode 2
• Special mode 3 (Bus collision detection function, IE mode) : UART0, UART1
• Special mode 4 (SIM mode) : UART2
Figures 10.3 to 10.8 show the UARTi-related registers.
Refer to tables listing each mode for register setting.
Rev.2.10 Oct 25, 2006 Page 93 of 326
REJ03B0152-0210