PXD20RM Datasheet, PDF (980/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

27.10.1 LIN control register 1 (LINCR1)
Offset:0x00
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R _{CCD CFD}
1
1
W
MBL¹
BF¹
SFT
M¹
INIT
Reset 0
0
0
0
0
0
0
0
1
0
0 0/1² 0
0
1
0
1 _{These fields are writable only in Initialization mode (LINCR1[INIT] = 1).}
2 _{Resets to 0 in Slave mode and to 1 in Master mode}
Figure 27-18. LIN control register 1 (LINCR1)
Table 27-11. LINCR1 field descriptions
Field
CCD
CFD
LASE
AWUM
MBL
Description
Checksum Calculation disable
This bit is used to disable the checksum calculation (see Table 27-12).
0: Checksum calculation is done by hardware. When this bit is reset the LINCFR register is read-only.
1: Checksum calculation is disabled. When this bit is set the LINCFR register is read/write. User can
program this register to send a software calculated CRC (provided CFD is reset).
Note: This bit can be written in Initialization mode only. It is read-only in Normal or Sleep mode.
Checksum field disable
This bit is used to disable the checksum field transmission (see Table 27-12).
0: Checksum field is sent after the required number of data bytes is sent.
1: No checksum field is sent.
Note: This bit can be written in Initialization mode only. It is read-only in Normal or Sleep mode.
LIN Slave Automatic Resynchronization Enable
0: Automatic resynchronization disable
1: Automatic resynchronization enable
Note: This bit can be written in Initialization mode only. It is read-only in Normal or Sleep mode.
Automatic Wake-Up Mode
This bit controls the behavior of the LINFlexD hardware during Sleep mode.
0: The Sleep mode is exited on software request by clearing the SLEEP bit of the LINCR register.
1: The Sleep mode is exited automatically by hardware on RX dominant state detection. The SLEEP
bit of the LINCR register is cleared by hardware whenever WUF bit in LINSR is set.
Note: This bit can be written in Initialization mode only. It is read-only in Normal or Sleep mode.
LIN Master Break Length
These bits indicate the Break length in Master mode (see Table 27-13).
Note: These bits can be written in Initialization mode only. They are read-only in Normal or Sleep
mode.
27-24
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor