upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 286

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

10.4 Asynchronous Serial Interface (UART0, UART1)
(1) Operation stop mode
(2) Asynchronous serial interface (UART) mode
10.4.1 Configuration
286
UARTn (n = 0, 1) has the following two operation modes.
UARTn consists of the following hardware.
This mode is used when serial transfers are not performed.
consumption.
This mode enables full-duplex operation in which one byte of data is transmitted and received 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).
Registers
Control registers
Item
CHAPTER 10
Table 10-7. 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 0, 1 (BRGMC0, BRGMC1)
Baud rate generator mode control register 01 (BRGMC01)
User’s Manual U12768EJ4V1UD
SERIAL INTERFACE FUNCTION
Configuration
It can therefore be used to reduce power