
On-chip peripherals
ST7L34, ST7L35, ST7L38, ST7L39
Doc ID 11928 Rev 7
Table 72.
SCICR2 register description(1)
1.
Bit Name
Function
7
TIE
Transmitter interrupt enable
This bit is set and cleared by software.
0: Interrupt is inhibited
1: An SCI interrupt is generated whenever TDRE = 1 in the SCISR register
6TCIE
Transmission complete interrupt enable
This bit is set and cleared by software.
0: Interrupt is inhibited
1: An SCI interrupt is generated whenever TC = 1 in the SCISR register
5RIE
Receiver interrupt enable
This bit is set and cleared by software.
0: Interrupt is inhibited
1: An SCI interrupt is generated whenever OR = 1 or RDRF = 1 in the SCISR register
4ILIE
Idle line interrupt enable
This bit is set and cleared by software.
0: Interrupt is inhibited
1: An SCI interrupt is generated whenever IDLE = 1 in the SCISR register
3TE
Transmitter enable
This bit enables the transmitter. It is set and cleared by software.
0: Transmitter is disabled
1: Transmitter is enabled
Note: During transmission, a ‘0’ pulse on the TE bit (‘0’ followed by ‘1’) sends a
preamble (idle line) after the current word.
When TE is set, there is a 1 bit-time delay before the transmission starts.
2RE
Receiver enable
This bit enables the receiver. It is set and cleared by software.
0: Receiver is disabled in the SCISR register
1: Receiver is enabled and begins searching for a start bit
1RWU
Receiver wake-up
This bit determines if the SCI is in mute mode or not. It is set and cleared by software
and can be cleared by hardware when a wake-up sequence is recognized.
0: Receiver in active mode
1: Receiver in mute mode
Note: Mute mode is recommended for detecting only the header and avoiding the
reception of any other characters. For more details please refer to
LIN receptionIn LIN slave mode, when RDRF is set, the software can not set or clear the RWU
bit.
0
SBK
Send break
This bit set is used to send break characters. It is set and cleared by software.
0: No break character is transmitted
1: Break characters are transmitted
Note: If the SBK bit is set to ‘1’ and then to ‘0’, the transmitter sends a BREAK word at
the end of the current word.