mc33905s Freescale Semiconductor, Inc, mc33905s Datasheet - Page 54

• Manufacturer Part Number: mc33905s
• Description: System Basis Chip Gen2 With High Speed Can And Lin Interface
• Manufacturer: Freescale Semiconductor, Inc

detection of LIN bus activity.
LIN Bus Activity Detection
dominant transition, followed by a dominant level with a
duration greater than 70 μs, followed by a dominant to
recessive transition. This is illustrated in
page
54
33904/5
LIN BLOCK
LIN OPERATIONAL MODES
The LIN block can be awakened from Sleep Mode by
The LIN bus wake-up is recognized by a recessive to
Table 9.
TXD Pin Permanent Dominant
26
LIN supply undervoltage
LIN Thermal Shutdown
and
Figures 16
FAULT
LIN Block Failure
on page 27. Once the wake-up is
FUNCTIONNAL
MODE
Tx Rx
Tx Rx
Figures 15
TXD pin low for more than
LIN driver temperature > 160°C (typ)
LIN supply voltage < 6V (typ)
on
CONDITION
detected, the event is reported to the device state machine.
An INT is generated if device is in LP Vdd ON mode, or Vdd
will restart if device was in LP Vdd off mode.
of failure.
t
TXDDOM
The wake up can be enable or disable by SPI.
Fail-Safe Features
The table below describes the LIN block behavior in case
LIN transmitter and receiver
LIN transmitter in recessive
LIN transmitter in recessive
High Side turned off
CONSEQUENCE
disabled
State
State
Analog Integrated Circuit Device Data
Freescale Semiconductor
Condition gone
Condition gone
Condition gone
RECOVERY