HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 383

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Bit 5—Overrun Error (ORER): Indicates that data reception ended abnormally due to an
overrun error.
Bit 5
ORER
0
1
Notes: 1. Clearing the RE bit to 0 in SCR does not affect the ORER flag, which retains its
Bit 4—Framing Error (FER)/Error Signal Status (ERS): The function of this bit differs for the
normal serial communication interface and for the smart card interface. Its function is switched
with the SMIF bit in SCMR.
For serial communication interface (SMIF bit in SCMR cleared to 0): Indicates that data
reception ended abnormally due to a framing error in asynchronous mode.
Bit 4
FER
0
1
Notes: 1. Clearing the RE bit to 0 in SCR does not affect the FER flag, which retains its previous
2. RDR continues to hold the receive data prior to the overrun error, so subsequent
2. When the stop bit length is 2 bits, only the first bit is checked for a value of 1. The
previous value.
receive data is lost. Serial receiving cannot continue while the ORER flag is set to 1. In
synchronous mode, serial transmitting is also disabled.
value.
second stop bit is not checked. When a framing error occurs the SCI transfers the
receive data into RDR but does not set the RDRF flag. Serial receiving cannot continue
while the FER flag is set to 1. In synchronous mode, serial transmitting is also disabled.
Description
Receiving is in progress or has ended normally*
[Clearing conditions]
•
•
A receive overrun error occurred*
[Setting condition]
Reception of the next serial data ends when RDRF = 1
Description
Receiving is in progress or has ended normally*
[Clearing conditions]
•
•
A receive framing error occurred
[Setting condition]
The stop bit at the end of the receive data is checked for a value of 1, and is
found to be 0.*
The chip is reset or enters standby mode
Read ORER when ORER = 1, then write 0 in ORER
The chip is reset or enters standby mode
Read FER when FER = 1, then write 0 in FER
2
2
Rev.4.00 Aug. 20, 2007 Page 339 of 638
12. Serial Communication Interface
1
1
REJ09B0395-0400
(Initial value)
(Initial value)