Table 838. Lincr2 Field Descriptions - STMicroelectronics SPC572L series Reference Manual

RM0400
Field
Reserved
0–15
Read returns 0.
Two Bit delimiter bit
16
0 Delimiter length in break field is 1 bit
1 Delimiter length in break field is 2 bits
TBDE
This bit can be set in Initialization mode only.
Idle on Bit Error
17
0 Bit Error does not reset LIN state machine
1 Bit Error resets LIN state machine
IOBE
This bit can be set in Initialization mode only.
Idle on Identifier Parity Error
0 Parity Error does not reset LIN state machine
18
1 Parity Error resets LIN state machine
IOPE
This bit can be set in Initialization mode only.
If generic slave = 0, then this bit will always read a 0, and cannot be programmed.
Wakeup Generate Request
Setting this bit will generate a wakeup pulse. It is reset by hardware when the wakeup character
19
has been transmitted. The character sent during wakeup is copied from BDRL (DATA0). Note
that this bit cannot be set in Sleep mode — software has to exit Sleep mode before setting this
WURQ
bit.
Bit Error is not checked when transmitting the wakeup request.
Data Discard request
20
Set by software to stop data reception if the frame does not concern the node. This bit is reset by
DDRQ hardware once LINFlexD ignores the response and moves to Idle state. For LIN slave this bit can
be set only when HRF bit is set and Identifier is software-filtered.
Data Transmission Request
Set by software in slave mode to request the transmission of the LIN Data field stored in the
Buffer data register. This bit can be set only when the HRF bit is set (to ensure that data
21 transmission is requested only after a header reception).
DTRQ Cleared by hardware when the request has been completed, or on abort request or error
condition.
In Master mode, this bit is set by hardware when the DIR bit is set and header transmission is
complete.
Abort Request
Set by software to abort the current transmission.
22
Cleared by hardware when the transmission has been aborted. LINFlexD aborts the transmission
ABRQ
at the end of the current bit. This bit can abort a wakeup request also and can be used in UART
mode also.

Table 838. LINCR2 field descriptions

DocID027809 Rev 4
Description
LINFlexD
1481/2058
1506