ATAVRDISPLAYX Atmel, ATAVRDISPLAYX Datasheet - Page 126
ATAVRDISPLAYX
Manufacturer Part Number
ATAVRDISPLAYX
Description
KIT EVAL XMEGA DISPLAY
Manufacturer
Atmel
Specifications of ATAVRDISPLAYX
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Silicon Manufacturer
Atmel
Silicon Family Name
ATxmega
Kit Contents
Board
Features
Temperature Sensor, Mono Speaker Via Audio Amplifier
Svhc
No SVHC (15-Dec-2010)
Core Architecture
AVR
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATAVRDISPLAYX
Manufacturer:
Atmel
Quantity:
135
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12.6.2
8077H–AVR–12/09
Round-robin scheduling
Figure 12-1. Static priority.
To avoid the possible starvation problem for low level interrupts with static priority, the PMIC
gives the possibility for round-robin scheduling for low level interrupts. When round-robin sched-
uling is enabled, the interrupt vector address for the last acknowledged low level interrupt will
have the lowest priority next time one or more interrupts from the low level is requested.
Figure 12-2. Round-robin scheduling.
IV EC x las t ack now le dge d
inte rrupt
IV EC x+1
IV EC N
IV EC 0
IV EC x
:
:
:
:
:
:
Lowes t Addres s
Highes t Addres s
Low est Priority
Highest Priority
IVEC x+1
IVEC N
IVEC 0
IVEC x
:
:
:
:
:
:
IV EC x+1 las t ack now le dge d
inte rrupt
IV EC x+1
IV EC x+2
IV EC N
IV EC 0
IV EC x
Highes t Priority
Lowes t Priority
:
:
:
:
:
:
Low est Priority
Highest Priority
XMEGA A
126
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