OM13005,598 NXP Semiconductors, OM13005,598 Datasheet - Page 244
![BOARD EVAL EM773 METER US PLUG](/photos/38/74/387430/om13005_sml.jpg)
OM13005,598
Manufacturer Part Number
OM13005,598
Description
BOARD EVAL EM773 METER US PLUG
Manufacturer
NXP Semiconductors
Type
Other Power Managementr
Specifications of OM13005,598
Design Resources
Plug Meter Schematics, Gerber Files USB Dongle Schematics, Gerber Files
Main Purpose
Power Management, Energy/Power Meter
Embedded
Yes, MCU, 32-Bit
Utilized Ic / Part
EM773FHN33,551
Interface Type
USB
Maximum Operating Temperature
+ 150 C
Operating Supply Voltage
1.8 V to 3.6 V
Product
Power Management Development Tools
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Primary Attributes
-
Secondary Attributes
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
EM773, OL2381
Other names
568-6680
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NXP Semiconductors
UM10415
User manual
20.3.5.1.1 Wait for interrupt
20.3.5.1.2 Wait for event
20.3.5.1 Entering sleep mode
20.3.5 Power management
Remark: If lockup state occurs in the NMI handler a subsequent NMI does not cause the
processor to leave lockup state.
The Cortex-M0 processor sleep modes reduce power consumption:
The SLEEPDEEP bit of the SCR selects which sleep mode is used, see
Section
This section describes the mechanisms for entering sleep mode and the conditions for
waking up from sleep mode.
This section describes the mechanisms software can use to put the processor into sleep
mode.
The system can generate spurious wake-up events, for example a debug operation wakes
up the processor. Therefore software must be able to put the processor back into sleep
mode after such an event. A program might have an idle loop to put the processor back in
to sleep mode.
The Wait For Interrupt instruction, WFI, causes immediate entry to sleep mode. When the
processor executes a WFI instruction it stops executing instructions and enters sleep
mode. See
Remark: The WFE instruction is not implemented on the EM773.
The Wait For Event instruction, WFE, causes entry to sleep mode conditional on the value
of a one-bit event register. When the processor executes a WFE instruction, it checks the
value of the event register:
0 — The processor stops executing instructions and enters sleep mode
1 — The processor sets the register to zero and continues executing instructions without
entering sleep mode.
See
If the event register is 1, this indicates that the processor must not enter sleep mode on
execution of a WFE instruction. Typically, this is because of the assertion of an external
event, or because another processor in the system has executed a SEV instruction, see
Section
•
•
a sleep mode, that stops the processor clock
a Deep-sleep mode (see
Section 20–20.4.7.11
20–20.5.3.5.
20–20.4.7.9. Software cannot access this register directly.
Section 20–20.4.7.12
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 10 September 2010
for more information.
Section
Chapter 20: Appendix EM773 ARM Cortex-M0 reference
for more information.
3.7.3).
UM10415
© NXP B.V. 2010. All rights reserved.
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