Receiver Muting And Wake-Up Feature; Figure 79. Sci Baud Rate And Extended Prescaler Block Diagram - STMicroelectronics ST72361 Auto Series Manual

LINSCI serial communication interface (LIN master/slave)

Figure 79. SCI baud rate and extended prescaler block diagram

f
15.5.7

Receiver muting and wake-up feature

In multiprocessor configurations it is often desirable that only the intended message
recipient should actively receive the full message contents, thus reducing redundant SCI
service overhead for all non-addressed receivers.
The non-addressed devices may be placed in sleep mode by means of the muting function.
Setting the RWU bit by software puts the SCI in sleep mode:
All the reception status bits can not be set.
All the receive interrupts are inhibited.
A muted receiver may be woken up in one of the following ways:
●
by Idle Line detection if the WAKE bit is reset,
●
by Address Mark detection if the WAKE bit is set.
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EXTENDED PRESCALER TRANSMITTER RATE CONTROL
EXTENDED TRANSMITTER PRESCALER REGISTER
EXTENDED RECEIVER PRESCALER REGISTER
EXTENDED PRESCALER RECEIVER RATE CONTROL
CPU
/PR
/16
SCP1
CONVENTIONAL BAUD RATE GENERATOR
EXTENDED PRESCALER
TRANSMITTER RATE
CONTROL
SCP0 SCT2 SCT1 SCT0 SCR2 SCR1SCR0
RECEIVER RATE
CONTROL
Doc ID 12468 Rev 3
SCIETPR
SCIERPR
SCIBRR
ST72361xx-Auto
TRANSMITTER
CLOCK
RECEIVER
CLOCK