OM13005,598 NXP Semiconductors, OM13005,598 Datasheet - Page 238
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
20.3.3.2 Exception types
An interrupt request from a peripheral or from software can change the state of the
corresponding interrupt to pending.
Active — An exception that is being serviced by the processor but has not completed.
An exception handler can interrupt the execution of another exception handler. In this
case both exceptions are in the active state.
Active and pending — The exception is being serviced by the processor and there is a
pending exception from the same source.
The exception types are:
Remark: The NMI is not implemented on the EM773.
Reset — Reset is invoked on power up or a warm reset. The exception model treats reset
as a special form of exception. When reset is asserted, the operation of the processor
stops, potentially at any point in an instruction. When reset is deasserted, execution
restarts from the address provided by the reset entry in the vector table. Execution restarts
in Thread mode.
NMI — A NonMaskable Interrupt (NMI) can be signalled by a peripheral or triggered by
software. This is the highest priority exception other than reset. It is permanently enabled
and has a fixed priority of −2. NMIs cannot be:
HardFault — A HardFault is an exception that occurs because of an error during normal
or exception processing. HardFaults have a fixed priority of -1, meaning they have higher
priority than any exception with configurable priority.
SVCall — A supervisor call (SVC) is an exception that is triggered by the SVC instruction.
In an OS environment, applications can use SVC instructions to access OS kernel functions
and device drivers.
PendSV — PendSV is an interrupt-driven request for system-level service. In an OS
environment, use PendSV for context switching when no other exception is active.
SysTick — A SysTick exception is an exception the system timer generates when it
reaches zero. Software can also generate a SysTick exception. In an OS environment, the
processor can use this exception as system tick.
Interrupt (IRQ) — An interrupt, or IRQ, is an exception signalled by a peripheral, or
generated by a software request. All interrupts are asynchronous to instruction execution.
In the system, peripherals use interrupts to communicate with the processor.
Table 225. Properties of different exception types
Exception
number
1
2
3
4-10
11
•
•
masked or prevented from activation by any other exception
preempted by any exception other than Reset.
[1]
All information provided in this document is subject to legal disclaimers.
IRQ
number
-
-14
-13
-
-5
Rev. 1 — 10 September 2010
[1]
Chapter 20: Appendix EM773 ARM Cortex-M0 reference
Exception
type
Reset
NMI
HardFault
Reserved
SVCall
Priority
-3, the highest
-2
-1
-
Configurable
[3]
UM10415
© NXP B.V. 2010. All rights reserved.
Vector
address
0x00000004
0x00000008
0x0000000C
-
0x0000002C
[2]
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