UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 450

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

16.2.3 Data Format
bit, and stop bit(s).
means of the asynchronous serial interface mode register (ASIM).
generator settings.
interface status register (ASIS) status.
410
Serial data transmission/reception is performed in full-duplex asynchronous mode.
The transmit/receive data format is shown in Figure 16-5. One data frame is made up of a start bit, character bits, parity
Character bit length specification, parity selection and stop bit length specification for one data frame are performed by
• Start bit ························ 1 bit
• Character bits ············· 7 bits/8 bits
• Parity bit ······················ Even parity/odd parity/0 parity/no parity
• Stop bit s ····················· 1 bit/2 bits
The serial transfer rate is selected in accordance with the asynchronous serial interface mode register and baud rate
If a serial data receive error occurs, the nature of the receive error can be determined by reading the asynchronous serial
Figure 16-5 Asynchronous Serial Interface Transmit/Receive Data Format
CHAPTER 16 ASYNCHRONOUS SERIAL INTERFACE/3-WIRE SERIAL I/O
Start
Bit
D0
D1
D2
D3
1 Data Frame
D4
D5
D6
D7 Parity
Bit
Stop
Bit(s)