MM908E621_08 FREESCALE [Freescale Semiconductor, Inc], MM908E621_08 Datasheet - Page 21

• Manufacturer Part Number: MM908E621_08
• Description: Integrated Quad Half-bridge and Triple High Side with Embedded MCU and LIN for High End Mirror
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

integrated and cost-effective solution for automotive and
industrial applications. For automotive body electronics, the
908E621 is well suited to perform complete mirror control via
a three wire LIN bus.
flash memory together with a SMARTMOS IC chip. The
SMARTMOS IC chip combines power and control in one
chip. Power switches are provided on the SMARTMOS IC
configured as half-bridge outputs and three high side
page 2, for a graphic representation of the various pins
referred to in the following paragraphs. Also, see the pin
diagram on
package.
PORT A I/O PINS
that are shared with other functional modules in the MCU.
PTA0:PTA4 are shared with the keyboard interrupt pins,
KBD0:KBD4.
is internally connected to the SPI clock pin of the analog die.
internally connected to the SPI slave select input of the
analog die.
PORT B I/O PINS
that are shared with other functional modules in the MCU. All
pins are shared with the ADC module.
analog die, allowing diagnostic measurements to be
calculated (e.g., current recopy, V
AD7/TBCH1 pins are not accessible in this device.
PORT C I/O PINS
that are shared with other functional modules in the MCU. For
example, PTC2:PTC4 are shared with the ICG module.
Analog Integrated Circuit Device Data
Freescale Semiconductor
The 908E621 was designed and developed as a highly
This device combines an HC908EY16 MCU core with
See
These pins are special function, bidirectional I/O port pins
The PTA5/SPSCK pin is not accessible in this device and
The PTA6/
For details refer to the 68HC908EY16 datasheet.
These pins are special function, bidirectional I/O port pins
PTB0/AD0 is internally connected to the ADOUT pin of the
The PTB1/AD1, PTB2/AD2, PTB6/AD6/TBCH0, PTB7/
For details refer to the 68HC908EY16 datasheet.
These pins are special function, bidirectional I/O port pins
Figure 2, 908E621 Simplified Internal Block
page 3
SS
pin is not accessible in this device and is
for a depiction of the pin locations on the
SUP
, etc.).
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
Diagram,
INTRODUCTION
switches. Other ports are also provided, which include one
Hall-effect sensor input port, one analog input port with a
switched current source, one wake-up pin, and a selectable
HVDD pin. An internal voltage regulator provides power to
the MCU chip.
communicates using a single wire. This enables this device
to be compatible with three wire bus systems, where one wire
is used for communication, one for battery, and one for
ground.
device and are internally connected to the MISO and MOSI
SPI pins of the analog die.
PORT D I/O PINS
function, bidirectional I/O port pins that can also be
programmed to be timer pins.
of the analog die and only accessible for test purposes (can
not be used in the application).
PORT E I/O PIN
bidirectional I/O port pins that can also be programmed to be
enhanced serial communication.
analog die. The connection for the receiver must be done
externally.
analog die and only accessible for test purposes (can not be
used in the application).
EXTERNAL INTERRUPT PIN (
pin contains an internal pullup resistor that is always
activated, even when the
Also included in this device is a LIN physical layer, which
PTC0/MISO and PTC1/MOSI are not accessible in this
For details refer to the 68HC908EY16 datasheet.
PTD0/TACH0/BEMF and PTD1/TACH1 are special
PTD0/TACH0 pin is internally connected to the PWM input
For details refer to the 68HC908EY16 datasheet.
PTE0/TXD and PTE1/RXD are special function,
PTE0/TXD is internally connected to the TXD pin of the
PTE1/RXD is internally connected to the RXD pin of the
For details refer to the 68HC908EY16 datasheet.
The
For details refer to the 68HC908EY16 datasheet.
IRQ
pin is an asynchronous external interrupt pin. This
IRQ
pin is pulled LOW.
FUNCTIONAL DESCRIPTION
IRQ
)
INTRODUCTION
908E621
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