MM908E621_08 FREESCALE [Freescale Semiconductor, Inc], MM908E621_08 Datasheet - Page 24

• 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]

SMARTMOS ANALOG CONTROL IC
INTERNAL REGULATORS & SAFETY:
VOLTAGE REGULATION
voltage for the Analog IC as well as the VDD/VSS rails for the
core IC. The on-chip regulator consists of two elements, the
main regulator, and the low voltage reset circuit. The VDD
regulator accepts an unregulated input supply, and provides
a regulated VDD supply to all digital sections of the device.
The output of the regulator is also connected to the VDD pin,
to provide the 5.0V to the microcontroller.
SWITCHED VDD
external load.
WATCHDOG TIMER
a watchdog timeout or wrong watchdog timer reset. A
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908E621
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
The voltage regulator circuitry provides the regulated
This function provides a switchable +5.0V VDD rail for an
The watchdog timer module generates a reset, in case of
Internal Regulators & Safety
Hall Sensor Interface
MM908E621 - Functional Block Diagram
Voltage Regulation
Switched VDD
LIN Interface
Analog Input w/Integrated Current Source
SMARTMOS Analog Control IC
Internal Regulators & Safety
High Side Drivers & Diagnostics
H-Bridge Drivers & Diagnostics
Control & Interface
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Outputs
SPI Interface & PWM Control
Reset, IRQ & Wake-up
Control & Interface
Analog Multiplexer
Watchdog Timer
watchdog reset event will reset all registers in the SPI,
excluding the RSR.
RESET, IRQ & WAKE-UP
generate a reset or wake-up signal to the core IC. There is a
pin that is used to detect an external wake-up event. The
Reset signal has many possible sources in the Analog IC
circuitry. The IRQ function on the Analog IC, will notify the
core IC of pending system critical conditions.
CONTROL & INTERFACE:
HALL SENSOR INTERFACE
a general purpose input, or as a hall-effect sensor input, to be
able to read 3-pin / 2-pin hall sensors or switches.
There are several functions on the Analog IC that can
This interface can be configured to support an input pin as
Outputs
MC68HC908EY16 Core
w/ ALU, RAM, Flash ROM
Communication Modules
Internal Clock Module
I/O Ports A, B, C, D, E
w/Power-On Reset
10-Bit ADC Module
Analog Integrated Circuit Device Data
Power Module
M68HC08 CPU
Timer Modules
Reset & IRQ
MC68HC908EY16 Core
Freescale Semiconductor