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10.5 Asynchronous Serial Interface (UART0, UART1)
UARTn (n = 0, 1) has the following two operation modes.
(1) Operation stop mode
This mode is used when serial transfers are not performed.
consumption.
(2) Asynchronous serial interface mode
This mode enables full-duplex operation which transmits and receives one byte of data after the start bit.
The on-chip dedicated UARTn baud rate generator enables communications using a wide range of selectable
baud rates. In addition, a baud rate based on divided clock input to the ASCKn pin can also be defined.
The UARTn baud rate generator can also be used to generate a MIDI-standard baud rate (31.25 Kbps).
10.5.1 Configuration
The UARTn includes the following hardware.
Item
Registers
Control registers
CHAPTER 10
SERIAL INTERFACE FUNCTION
Table 10-15. Configuration of UARTn
Transmit shift registers 0, 1 (TXS0, TXS1)
Receive buffer registers 0, 1 (RXB0, RXB1)
Asynchronous serial interface mode registers 0, 1 (ASIM0, ASIM1)
Asynchronous serial interface status registers 0, 1 (ASIS0, ASIS1)
Baud rate generator control registers 0, 1 (BRGC0, BRGC1)
Baud rate generator mode control registers 00, 01 (BRGMC00,
BRGMC01)
Baud rate generator mode control registers 10, 11 (BRGMC10,
BRGMC11)
User's Manual U13850EJ6V0UD
It can therefore be used to reduce power
Configuration
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