Datasheet

457
32142D–06/2013
ATUC64/128/256L3/4U
Figure 20-28. Master Node Configuration, NACT=SUBSCRIBE
Figure 20-29. Master Node Configuration, NACT=IGNORE
20.6.7.2 Slave Node Configuration
This is identical to the master node configuration above, except for:
• LIN mode selected in MR.MODE is slave
• When the baud rate is configured, wait until CSR.LINID is a one, then;
• Check for LINISFE and LINPE errors, clear errors and LINIDby writing a one to RSTSTA
• Read IDCHR
• Configure the frame transfer by writing to NACT, PARDIS, CHKDIS, CHKTYPE, DLCM, and
DLC in LINMR
IMPORTANT: if NACT=PUBLISH, and this field is already correct, the LINMR register must still
be written with this value in order to set TXRDY, and to request the corresponding Peripheral
DMA Controller write transfer.
The different NACT settings result in the same procedure as for the master node, see page 455.
Break
Synch
Protected
Identifier
Data 1
Data N
Checksum
TXRDY
Read
RHR
Write
LINIR
Data 1
Data N-1
Data N-1
RXRDY
Data NData N-2
Header
Inter-
frame
space
Response
space
Frame
Frame slot = TFrame_Maximum
Response
Data3
LINTC
FSDIS=0FSDIS=1
TXRDY
Write
LINIR
RXRDY
LINTC
Break
Synch
Protected
Identifier
Data 1
Data N
Checksum
Data N-1
Header
Inter-
frame
space
Response
space
Frame
Frame slot = TFrame_Maximum
Response
Data3
FSDIS=1 FSDIS=0