mc33911 Freescale Semiconductor, Inc, mc33911 Datasheet - Page 31

• Manufacturer Part Number: mc33911
• Description: Mc33911 Lin System Basis Chip With Dc Motor Pre-driver
• Manufacturer: Freescale Semiconductor, Inc

short to V
LINOC in the LIN Status Register (LINSR) is set.
an Interrupt IRQ will be generated.
Over-temperature Shutdown (LIN Interrupt)
temperature conditions. If an over-temperature condition
occurs, the transmitter will be shut down and the LINOT bit in
the LINSR is set.
generated.
condition is gone and TXD is high.
the transmitter.
RXD Short-circuit Detection (LIN Interrupt)
RXD output pin. In case of a short-circuit condition, either 5V
or Ground, the RXSHORT bit in the LINSR is set and the
transmitter is shutdown.
generated.
condition is gone (transition on RXD) and TXD is high.
condition will clear the RXSHORT bit.
TXD Dominant Detection (LIN Interrupt)
stuck-in-dominant (0V) condition. If a stuck condition occurs
(TXD pin 0V for more than 1 second (typ.), the transmitter is
shut down and the TXDOM bit in the LINSR is set.
generated.
high.
Analog Integrated Circuit Device Data
Freescale Semiconductor
If the LINM bit is set in the Interrupt Mask Register (IMR)
The output low side FET is protected against over-
If the LINM bit is set in the IMR an Interrupt IRQ will be
The transmitter is automatically re-enabled once the
A read of the LINSR with the TXD pin high will re-enable
The LIN transceiver has a short-circuit detection for the
If the LINM bit is set in the IMR an Interrupt IRQ will be
The transmitter is automatically re-enabled once the
A read of the LINSR without the RXD pin short-circuit
The LIN transceiver monitors the TXD input pin to detect
If the bit LINM is set in the IMR an Interrupt IRQ will be
The transmitter is automatically re-enabled once TXD is
BAT
), the transmitter will not be shut down. The bit
bit TXDOM.
LIN Dominant Voltage Level Selection
LDVS bit in the LIN Control Register (LINCR).
LIN Receiver Operation Only
disables the LIN TXD driver. If a LIN error condition occurs,
this bit is automatically set. Ifa low-power mode is selected
with this bit set, the LIN wake-up functionality is disabled.
Then in STOP mode, the RXD pin will reflect the state of the
LIN bus.
STOP Mode And Wake-up Feature
physical layer is disabled. If the LIN-PU bit was set in the Stop
Mode sequence, the internal pull-up resistor is disconnected
from VSUP and a small current source keeps the LIN pin in
the recessive state. The receiver is still active and able to
detect wake-up events on the LIN bus line.
edge will generate a wake-up interrupt and will be reported in
the Interrupt Source Register (ISR). Also see
page 18.
SLEEP Mode And Wake-Up Feature
physical layer is disabled. If the LIN-PU bit was set in the
Sleep Mode sequence, the internal pull-up resistor is
disconnected from V
the LIN pin in recessive state. The receiver must still active to
detect wake-up events on the LIN bus line.
edge will generate a system wake-up (Reset), and will be
reported in the ISR. Also see
A read of the LINSR with the TXD pin is high will clear the
The LIN dominant voltage level can be selected by the
While in Normal Mode, the activation of the RXONLY bit
During Stop Mode operation, the transmitter of the
A dominant level longer than t
During Sleep Mode operation, the transmitter of the
A dominant level longer than t
SUP
and a small current source keeps
FUNCTIONAL DEVICE OPERATIONS
Figure
PROPWL
PROPWL
10, page 18.
OPERATIONAL MODES
followed by a rising
followed by a rising
Figure
11,
33911
31