mm908e625 Freescale Semiconductor, Inc, mm908e625 Datasheet - Page 14

• Manufacturer Part Number: mm908e625
• Description: Integrated Quad Half H-bridge With Power Supply, Embedded Mcu, And Lin Serial Communication
• Manufacturer: Freescale Semiconductor, Inc

highly integrated and cost-effective solution for automotive
and industrial applications. For automotive body electronics,
the 908E625 is well suited to perform complete mirror, door
lock, and light-levelling control all via a three-wire LIN bus.
(68HC908EY16) with flash memory together with a
SMARTMOS
combines power and control in one chip. Power switches are
provided on the SMARTMOS
pins referred to in the following paragraphs. Also, see the pin
diagram on
package.
PORT A I/O PINS (PTA0:4)
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.
The PTA6/
PORT B I/O PINS (PTB1, PTB3:7)
that are shared with other functional modules in the MCU. All
pins are shared with the ADC module. The PTB6:PTB7 pins
are also shared with the Timer B module.
analog die, allowing diagnostic measurements to be
calculated; e.g., current recopy, V
pin is not accessible in this device.
PORT C I/O PINS (PTC2:4)
that are shared with other functional modules in the MCU. For
example, PTC2:PTC4 are shared with the ICG module.
device and are internally connected to the MISO and MOSI
SPI pins of the analog die.
14
908E625
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 908E625 device was designed and developed as a
This device combines an standard HC08 MCU core
See
These pins are special-function, bidirectional I/O port pins
The PTA5/SPSCK pin is not accessible in this device and
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
For details refer to the 68HC908EY16 datasheet.
These pins are special-function, bidirectional I/O port pins
PTC0/MISO and PTC1/MOSI are not accessible in this
For details refer to the 68HC908EY16 datasheet.
Figure 1
SS
Figure 3
™
pin is likewise not accessible.
IC chip. The SMARTMOS
for a graphic representation of the various
for a depiction of the pin locations on the
™
IC configured as half-bridge
SUP
, etc. The PTB2/AD2
™
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
IC chip
INTRODUCTION
outputs with one high-side switch. Other ports are also
provided; they include Hall-effect sensor input ports, analog
input ports, and a selectable HVDD pin. An internal voltage
regulator is provided on the SMARTMOS
provides power to the MCU chip.
communicates using a single wire. This enables the device to
be compatible with three-wire bus systems, where one wire is
used for communication, one for battery, and the third for
ground.
PORT D I/O PINS (PTD0:1)
function, bidirectional I/O port pins that can also be
programmed to be timer pins.
connected to the BEMF output of the analog die in order to
evaluate the BEMF signal with a special BEMF module of the
MCU.
generating the FGEN signal (PWM signal) if required by the
application.
PORT E I/O PIN (PTE1)
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.
EXTERNAL INTERRUPT PIN (IRQ)
pin contains an internal pull-up resistor that is always
activated, even when the
EXTERNAL RESET PIN (RST)
startup state.
entire system. It is driven LOW when any internal reset
source is asserted.
activated, even when the reset pin is pulled LOW.
Also included in this device is a LIN physical layer, which
PTD1/TACH1 and PTD0/TACH0/BEMF are special-
In step motor applications the PTD0 pin should be
PTD1 pin is recommended for use as an output pin for
PTE1/RXD and PTE0/TXD are special-function,
PTE0/TXD is internally connected to the TXD pin of the
The
For details refer to the 68HC908EY16 datasheet.
A Logic [0] on the
This pin contains an internal pull-up resistor that is always
For details refer to the 68HC908EY16 datasheet.
IRQ
pin is an asynchronous external interrupt pin. This
RST
is bidirectional, allowing a reset of the
RST
Analog Integrated Circuit Device Data
IRQ
pin forces the MCU to a known
pin is pulled LOW.
Freescale Semiconductor
™
IC chip, which