MM908E624ACDWB/R2 FREESCALE [Freescale Semiconductor, Inc], MM908E624ACDWB/R2 Datasheet - Page 26

• Manufacturer Part Number: MM908E624ACDWB/R2
• Description: Integrated Triple High-Side Switch with Embedded MCU and LIN Serial Communication for Relay Drivers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

TXD Terminal
of the LIN transmitter (see
LOW, the LIN terminal is low (dominant state). When TXD is
HIGH, the LIN output MOSFET is turned off (recessive state).
The TXD terminal has an internal pullup current source in
order to set the LIN bus to recessive state in the event, for
instance, the microcontroller could not control it during
system power-up or power-down.
RXD Terminal
reports the state of the LIN bus voltage. LIN HIGH (recessive
state) is reported by a high level on RXD, LIN LOW (dominant
state) by a low level on RXD.
STOP Mode and Wake-up Feature
physical layer is disabled. In case the bit LIN-PU was set in
26
908E624
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
The TXD terminal is the MCU interface to control the state
The RXD transceiver terminal is the MCU interface, which
During STOP mode operation the transmitter of the
RXD
TXD
LINFAIL
LINWU
Figure
2, page 2). When TXD is
MODE2:1
LINSL2:1
Control
WakeUp
Filter
Figure 15. LIN Interface
LIN-PU
Control
Slope
the Stop mode sequence the internal pull-up resistor is
disconnected from VSUP and a small current source keeps
the LIN terminal in 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 set the LINWF
flag in the SPI Status Register. Also see
SLEEP Mode and Wake-up Feature
physical layer is disabled. In case the bit LIN-PU was set in
the Sleep mode sequence the internal pull-up resistor is
disconnected from VSUP and a small current source keeps
the LIN terminal in recessive state. The receiver is still active
to be able to detect wake-up events on the LIN bus line.
edge will generate a system wake-up (reset) and set the
LINWF flag in the SPI Status Register . Also see
page 16).
A dominant level longer than T
During SLEEP mode operation the transmitter of the
A dominant level longer than T
VSUP1
GND
Analog Integrated Circuit Device Data
30k
propWL
propWL
2µA
Freescale Semiconductor
LIN bus
followed by an rising
followed by an rising
Figure
9, page 16.
Figure
8,