ATxmega192D3 Atmel Corporation, ATxmega192D3 Datasheet - Page 98
ATxmega192D3
Manufacturer Part Number
ATxmega192D3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega192D3
Flash (kbytes)
192 Kbytes
Pin Count
64
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
50
Ext Interrupts
50
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
2
Uart
3
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
18
Input Capture Channels
18
Pwm Channels
18
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega192D3-AU
Manufacturer:
CYPRESS
Quantity:
101
Company:
Part Number:
ATxmega192D3-AU
Manufacturer:
ATMEL
Quantity:
70
Company:
Part Number:
ATxmega192D3-H
Manufacturer:
SQ
Quantity:
719
Company:
Part Number:
ATxmega192D3-MH
Manufacturer:
Atmel
Quantity:
565
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10.6.2
8210B–AVR–04/10
Round-robin scheduling
Figure 10-1. 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 10-2. 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 D
98
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