MM908E622ACDWBR2 FREESCALE [Freescale Semiconductor, Inc], MM908E622ACDWBR2 Datasheet - Page 32

• Manufacturer Part Number: MM908E622ACDWBR2
• Description: Integrated Quad Half-bridge, Triple High Side and EC Glass Driver with Embedded MCU and LIN for High End Mirror
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

TXD Pin
LIN transmitter (see
the LIN pin is low (dominant state). When TXD is HIGH, the
LIN output MOSFET is turned off (recessive state). The TXD
pin 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 Pin
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 and the internal pullup resistor is
disconnected from VSUP, and a small current source keeps
the LIN pin in recessive state. The receiver is still active and
able to detect wake-up events on the LIN bus line.
Mask register is set), a dominant level longer than t
32
908E622
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
The TXD pin is the MCU interface to control the state of the
The RXD transceiver pin is the MCU interface, which
During STOP mode operation the transmitter of the
If the LIN interrupt is enabled (LINIE bit in the Interrupt
Wake-up
RXD
TXD
Figure
LINCL
LINIF
2, page 2). When TXD is LOW,
TESTMODE
MODE
PSON
Control
Wake-up
Figure 16. LIN Interface
PROPWL
Filter
SRS[1:0]
Control
Slope
followed by an rising edge will set the LINIF flag and generate
an interrupt which causes a system wake-up (see
page 18)
SLEEP Mode and Wake-up Feature
physical layer is disabled and the internal pullup resistor is
disconnected from VSUP. A small current source keeps the
LIN pin 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 Reset Status register (RSR). Also see
Figure
A0 INPUT AND ANALOG MULTIPLEXER
A0 - Analog Input
analog inputs for potentiometers, NTC, etc.
pin offers a switchable current source. To read the Analog
Input the pin, it has to be selected with the SS[3:0] bits in the
A0MUCTL register.
During SLEEP mode operation, the transmitter of the
A dominant level longer than t
Input A0 is an analog input used for reading switches or as
A0 is internally connected to the analog multiplexer. This
9, page 18).
VSUP
GND
Analog Integrated Circuit Device Data
30k
PROPWL
10µA
Freescale Semiconductor
LIN bus
followed by an rising
Figure
8,