MM908E622ACDR2 FREESCALE [Freescale Semiconductor, Inc], MM908E622ACDR2 Datasheet - Page 24

• Manufacturer Part Number: MM908E622ACDR2
• 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]

908E622 ANALOG DIE MODES OF OPERATION
Stop, and Sleep. In Normal mode the device is active and is
operating under normal application conditions. The Stop and
Sleep modes are low power modes with wake-up capabilities.
Normal Mode
functions and power stages are active and can be enabled/
disabled. The voltage regulator provides the +5V V
MCU.
the MCU has to set the PSON bit in the System Control
Register within 80ms typical (t
MCU has started up and is operating correctly. If the PSON
bit is not set within the required time frame the device is
entering SLEEP mode to reduce power consumption (fail
safe).
programming by applying V
24
908E622
Functional Device Operation
Operational Modes
The 908E622 offers three operating modes: Normal (Run),
This Mode is normal operating mode of the device, all
After a reset (e.g. Power On Reset, Wake-Up from Sleep)
This MCU monitoring can be disabled e.g. for
Power
Down
Power Up
DD
NORMREQ
on the TESTMODE terminal.
FUNCTIONAL DEVICE OPERATION
), this is to ensure the
Figure 11. Operating Modes and Transitions
RESET
Reset (LVR, ext. Reset)
Wake-Up (Reset)
OPERATIONAL MODES
DD
to the
Reset (LVR, ext. Reset, (HTR))
V
Reset (LVR, HTR, WDR, ext. Reset)
DD
High and Reset Delay (t
The different modes can be selected by the STOP and
SLEEP bits in the System Control Register.
different operating modes and
overview of the operating modes.
Stop Mode
with V
the STOP bit in the System Control Register has to be set
and the MCU has to be stopped also (see 908EY16
datasheet for details).
the wake-up input L0 and is maskable with the LINIE and/or
L0IE bits in the Interrupt Mask Register. The analog die is
generating an interrupt on
MCU. The wake-up / interrupt source can be evaluated with
the L0IF and LINIF bits in the Interrupt Flag Register.
mode, but allows a quicker wake-up. Additionally the wake-
Figure 11
In Stop mode the voltage regulator still supplies the MCU
Wake-up from this mode is possible by LIN bus activity or
Stop mode has a higher current consumption than Sleep
SLEEP
DD
V
PSON = 0 and Normal Request
DD
(limited current capability). To enter the Stop mode
Low
timeout (t
describes how transitions are done between the
RST
NORMREQ
) expired
SLEEP Command
Analog Integrated Circuit Device Data
) expired
IRQ_A
Table
NORMAL
terminal to wake-up the
Request
Normal
Freescale Semiconductor
6, page 26, gives an
STOP