LAPIS Semiconductor ML62Q1000 Series User Manual page 427

Bit symbol
Bit no.
name
0 SnTUER
[Note]
Ÿ
Do not update the SnTUER, SnROER and SnTOER bits by using the bit symbol. Update them by using a
byte access, not so that unintented bits are changed by the bit access instructions.
Ÿ
Do not write the SnTUER, SnROER and SnTOER bits during the communication. Write them when the
communication is stopped.
FEUL62Q1000
This bit is used to indicate a transmission underrun error.
If writing a data to SDnBUF register when the SnFUL bit is "0", the SnTUER bit is set to "1".
To reset the SnTUER bit, write "1" to this bit. The SnTUER bit is fixed to "0" in the reception
mode.
0: There was no transmission underrun error (Initial value)
1: There was a transmission underrun error
ML62Q1000 Series User's Manual
Chapter 11 Serial Communication Unit
Description
11-25