upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 245

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

(f) Reception error
Parity error
Framing error
Overrun error
Three types of errors may occur during reception: a parity error, framing error, or overrun error. If the error
flag of asynchronous serial interface reception error status register 6 (ASIS6) is set as a result of data
reception, a reception error interrupt request (INTSR6/INTSRE6) is generated.
Which error has occurred during reception can be identified by reading the contents of ASIS6 in the reception
error interrupt (INTSR6/INTSRE6) servicing (see Figure 10-3).
The contents of ASIS6 are cleared to 0 when ASIS6 is read.
The reception error interrupt can be separated into reception completion interrupt (INTSR6) and error
interrupt (INTSRE6) by clearing bit 0 (ISRM6) of asynchronous serial interface operation mode register 6
(ASIM6) to 0.
1. If ISRM6 is cleared to 0 (reception completion interrupt (INTSR6) and error interrupt (INTSRE6) are
2. If ISRM6 is set to 1 (error interrupt is included in INTSR6)
INTSRE6
INTSRE6
INTSR6
INTSR6
separated)
Reception Error
(a) No error during reception
(a) No error during reception
The parity specified for transmission does not match the parity of the receive data.
Stop bit is not detected.
Reception of the next data is completed before data is read from receive buffer
register 6 (RXB6).
CHAPTER 10 SERIAL INTERFACE UART6
Figure 10-15. Reception Error Interrupt
Table 10-3. Cause of Reception Error
Preliminary User’s Manual U19014EJ1V0UD
INTSRE6
INTSRE6
INTSR6
INTSR6
Cause
(b) Error during reception
(b) Error during reception
245