Uart (Uart0, Uart1, Uart3) - NEC 78K0R/KE3 User Manual

11.1.2 UART (UART0, UART1, UART3)

This is a start-stop synchronization function using two lines: serial data transmission (T
reception (R D) lines. It transmits or receives data in asynchronization with the party of communication (by using an
X
internal baud rate). Full-duplex UART communication can be realized by using two channels, one dedicated to
transmission (even channel) and the other to reception (odd channel).
[Data transmission/reception]
• Data length of 5, 7, or 8 bits
• Select the MSB/LSB first
• Level setting of transmit/receive data and select of reverse
• Parity bit appending and parity check functions
• Stop bit appending
[Interrupt function]
• Transfer end interrupt/buffer empty interrupt
• Error interrupt in case of framing error, parity error, or overrun error
[Error detection flag]
• Framing error, parity error, or overrun error
The LIN-bus is accepted in UART3 (2 and 3 channels of unit 1)
[LIN-bus functions]
• Wakeup signal detection
• Sync break field (SBF) detection
• Sync field measurement, baud rate calculation
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CHAPTER 11 SERIAL ARRAY UNIT
External interrupt (INTP0) or timer array unit (TAU) is
used.
User's Manual U17854EJ9V0UD
D) and serial data
X