PXD10RM Datasheet, PDF (944/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

and to be used by software
• to wait until it is required to do something and then to react quickly (i.e. within a few system clock
cycles of an interrupt event)
All power domains except power domains #0 and #1 are configurable in this mode in order to reduce
leakage consumption. Active power domains are determined by the power configuration register
PCU_PCONF2 of the MC_PCU.
25.4.2.7 STOP Mode
The device enters this mode on the following events:
• from one of the RUN0…3 modes when the TARGET_MODE bit field of the ME_MCTL register
is written with “1010”.
As soon as any of the above events occur, a STOP mode transition request is generated. The mode
configuration information for this mode is provided by the ME_STOP_MC register. This mode is fully
configurable, and the ME_STOP_MC register should be programmed according to the system needs. The
FMPLL0 is switched off in this mode. The flashes can be put in power-down mode as needed. If there is
a STOP mode request while any interrupt or wakeup event is active, the device mode does not change, and
an invalid mode interrupt is not generated.
This can be used as an advanced low-power mode with the core clock frozen and almost all peripherals
stopped.
This mode is intended as an advanced low-power mode with
• the core clock frozen
• almost all peripherals stopped
and to be used by software
• to wait until it is required to do something with no need to react quickly (e.g. allow for system clock
source to be re-started)
If the pads’ power sequence driver cell needs to be disabled while entering this mode, the PDO bit of the
ME_STOP_MC register should be set. The state of the outputs is kept.
This mode can be used to stop all clock sources, thus preserving the device status. When exiting the STOP
mode, the fast internal RC oscillator (16MHz) clock is selected as the system clock until the target clock
is available.
All power domains except power domains #0 and #1 are configurable in this mode in order to reduce
leakage consumption. Active power domains are determined by the power configuration register
PCU_PCONF2 of the MC_PCU.
25.4.2.8 STANDBY Mode
The device enters this mode on the following events:
• from the DRUN or one of the RUN0…3 modes when the TARGET_MODE bit field of the
ME_MCTL register is written with “1101”.
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PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor