NXP Semiconductors PXN2020 - 31.3.2.10 eSCI LIN Receive Register (eSCI_LRR)

Enhanced Serial Communication Interface (eSCI)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 31-17
31.3.2.10 eSCI LIN Receive Register (eSCI_LRR)
This register provides the data bytes of received LIN RX frames.
Table 31-11. eSCI_LTR Field Descriptions
Field Description
P[1:0] Identifier Parity. This field provides the identifier parity that is used to create the protected identifier if the
automatic identifier parity generation is disabled, i.e., the PRTY bit in the eSCI LIN Control Register 1
(eSCI_LCR1) is 0.
ID[5:0] Identifier. This field is used for the identifier field in the protected identifier.
LEN Frame Length. This field defines the number of data bytes to be transmitted or received.
CSM Checksum Model. This bit controls the checksum calculation model used.
0 Classic Checksum Model (LIN 1.3).
1 Enhanced Checksum Model (LIN 2.0).
CSE Checksum Enable. This bit control the generation and checking of the checksum byte.
0 No generation and checking of checksum byte.
1 Generation and checking of checksum byte.
CRC CRC Enable. This bit controls the generation of checking standard or enhanced LIN frames, which are described
in Section 31.4.6.2, LIN Frame Formats.
0 Standard LIN frame generation and checking.
1 Enhanced LIN frame generation and checking.
TD Transfer Direction. This bit control the transfer direction of the data, CRC, and checksum byte fields.
0 Data, CRC, and Checksum byte fields received, described in Section 31.4.6.4, LIN RX Frame Generation.
1 Data, CRC, and Checksum byte fields transmitted, described in Section 31.4.6.3, LIN TX Frame Generation.
TO Timeout Value. The content of the field depends on the transfer direction.
RX frame: Defines the time available for a complete RX frame transfer, as described in Section 31.4.6.5.5,
Slave-Not-Responding-Error Detection.
TX frame: Must be set to 0.
DATA Transmit Data. Data bits for transmission.
Offset: ESCI_BASE + 0x0014 Access: User read/write
0123456789101112131415
R D 00000000
W
Reset0000000000000000
Figure 31-12. eSCI LIN Receive X Register (eSCI_LRR)
Table 31-12. LINRX Field Descriptions
Field Description
D Receive Data. This field provides the data bytes of received LIN RX frames.