mm908e621 Freescale Semiconductor, Inc, mm908e621 Datasheet - Page 25

• Manufacturer Part Number: mm908e621
• Description: Integrated Quad Half-bridge And Triple High-side With Embedded Mcu And Lin For High End Mirror
• Manufacturer: Freescale Semiconductor, Inc

mode, but allows a quicker wake-up. Additionally the wake-
up sources can be selected (maskable) which is not possible
in Sleep mode.
how the system is waking up.
Sleep Mode
MCU is not supplied (V
pulled low.
Control Register has to be set.
the wake-up input L0 and is not maskable. The wake-up
Analog Integrated Circuit Device Data
Freescale Semiconductor
Stop mode has a higher current consumption than Sleep
Figure 12
In Sleep mode the voltage regulator is turned off and the
To enter the Sleep mode the Sleep bit in the System
Wake-up from this mode is possible by LIN bus activity or
Figure 12. STOP mode Wake-up Procedure
LIN/L0 wakeup
SPI: reason for
Enable/disable
From Reset
MCU STOP
STOP =1
interrupt
interrupt
initialize
operate
MCU
SPI:
IRQ
show the procedure to enter the Stop mode and
?
DD
= 0 V) also the
high current mode
low current mode
Switch to VREG
Switch to VREG
Power Die
RST_A
Wake Up on
LIN or L0 ?
Assert IRQ
terminal is
behaves like a power on reset. The wake-up / reset source
can be evaluated by the L0WF and/or LINWF bits in the
Reset Status Register.
mode, but requires a longer time to wake-up. The wake-up
sources can not be selected (not maskable).
and how a wake-up is performed.
Sleep mode has a lower current consumption than Stop
Figure 13
Table 6
Figure 13. SLEEP mode Wake-up Procedure
From Reset
SLEEP =1
initialize
operate
MCU
summarized the Operating modes.
SPI:
show the procedure to enter the Sleep mode
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Vdd low, RST low
Switch off VREG
Store Wake Up
Vdd high, RST
Power Die
Wake Up on
Start VREG
LIN or L0 ?
Event
high
908E621
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