LIN Controller (LINFlex)
MPC5606S Microcontroller Reference Manual, Rev. 7
844 Freescale Semiconductor
RBSY
24
Receiver Busy Flag
0 Receiver is idle
1 Reception ongoing
Note: In Slave mode, after header reception, if DIR bit in BIDR is reset and reception starts then
this bit is set. In this case, user cannot set DTRQ bit in LINCR2.
RPS
25
LIN receive pin state
This bit reflects the current status of LINRX pin for diagnostic purposes.
WUF
26
Wake-up Flag
This bit is set by hardware and indicates to the software that LINFlex has detected a falling edge
on the LINRX pin when:
• Slave is in Sleep mode
• Master is in Sleep mode or idle state
This bit must be cleared by software. It is reset by hardware in Initialization mode. An interrupt is
generated if WUIE bit in LINIER is set.
DBFF
27
Data Buffer Full Flag
This bit is set by hardware and indicates the buffer is full. It is set only when receiving extended
frames (DFL > 7).
This bit must be cleared by software.
It is reset by hardware in Initialization mode.
DBEF
28
Data Buffer Empty Flag
This bit is set by hardware and indicates the buffer is empty. It is set only when transmitting
extended frames (DFL > 7).
This bit must be cleared by software, once buffer has been filled again, in order to start
transmission.
This bit is reset by hardware in Initialization mode.
DRF
29
Data Reception Completed Flag
This bit is set by hardware and indicates the data reception is completed.
This bit must be cleared by software.
It is reset by hardware in Initialization mode.
Note: This flag is not set in case of bit error or framing error.
DTF
30
Data Transmission Completed Flag
This bit is set by hardware and indicates the data transmission is completed.
This bit must be cleared by software.
It is reset by hardware in Initialization mode.
Note: This flag is not set in case of bit error if IOBE bit is reset.
HRF
31
Header Reception Flag
This bit is set by hardware and indicates a valid header reception is completed.
This bit must be cleared by software.
This bit is reset by hardware in Initialization mode and at end of completed or aborted frame.
Note: If filters are enabled, this bit is set only when identifier software filtering is required, that is
to say:
• All filters are inactive and BF bit in LINCR1 is set
• No match in any filter and BF bit in LINCR1 is set
• TX filter match
Table 23-8. LINSR field descriptions (continued)
Field Description
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