K60P100M100SF2RM Datasheet, PDF (1278/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Module Signal Description
Table 46-3. Module Modes and Their Conditions
Module Mode
Enabled
Description
The module performs the charger
detection sequence.
Conditions When Used
System software should enable the module only when all of the
following conditions are true:
• The system uses a rechargeable battery.
• The device is being used in an FS USB device application.
• The device has detected that it is attached to the USB cable.
Disabled
The module is not active and is held System software should disable the module when either of the
in a low power state.
following conditions is true:
• The charger detect sequence is complete.
• The conditions for being enabled are not met.
Powered Off
The digital supply voltage dvdd is
removed.
Optionally, the analog supply
voltage avdd33 also may be
reduced to as low as 1.7v without
causing excess leakage.
Low system performance requirements allow putting the device into
a very low-power stop mode.
Operating mode transitions are shown in the following table.
Table 46-4. Entering and Exiting Module Modes
Module
Mode
Enabled
Disabled
Entering
Exiting
Set the CONTROL[START] bit.
Set the CONTROL[SR] bit.¹
Take either of the following actions:
• Set the CONTROL[SR] bit.¹
Set the CONTROL[START] bit.
• Reset the module. (The module is disabled
out of reset by default.)
Mode
after
Exiting
Disabled
Enabled
Powered
Off
Perform the following actions:
1. Put the device into very low-power stop
mode.
2. Adjust the supply voltages.
Perform the following actions:
Disabled
1. Restore the supply voltages.
2. Take the device out of very low-power stop
mode.
1. The effect of setting the SR bit is immediate; that is, the module is disabled even if the sequence has not completed.
46.3 Module Signal Description
This section describes the module signals.
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K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.