ATxmega256A3 Atmel Corporation, ATxmega256A3 Datasheet - Page 40
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ATxmega256A3
Manufacturer Part Number
ATxmega256A3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega256A3
Flash (kbytes)
256 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
10
Twi (i2c)
2
Uart
7
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
16
Eeprom (bytes)
4096
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
7
Output Compare Channels
22
Input Capture Channels
22
Pwm Channels
22
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Company:
Part Number:
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12 000
Company:
Part Number:
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400
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ATxmega256A3U-AU
Manufacturer:
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Company:
Part Number:
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Manufacturer:
PANASONIC
Quantity:
1 450
4.17.16
4.17.17
4.17.18
4.17.19
8077H–AVR–12/09
ADCACAL1 - ADCA Calibration Register 1
ADCBCAL0 - ADCB Calibration Register 0
ADCBCAL1 - ADCB Calibration Register 1
TEMPSENSE0 - Temperature Sensor Calibration Register 0
• Bit 7:0 - ADCACAL1[7:0] - ADCA Calibration Byte 1
This byte contains byte 1 of the ADCA calibration data, and must be loaded into the ADCA
CALH register.
ADCBCAL0 and ADCBCAL1 contains the calibration value for the Analog to Digital Converter
B(ADCB). Calibration of the Analog to Digital Converters are done during production test of the
device. The calibration bytes not loaded automatically into the ADC calibration registers, and
this must be done from software.
• Bit 7:0 - ADCBCAL0[7:0] - ADCB Calibration Byte 0
This byte contains byte 0 of the ADCB calibration data, and must be loaded into the ADCB CALL
register.
• Bit 7:0 - ADCBCAL0[7:0] - ADCB Calibration Byte 1
This byte contains byte 1 of the ADCB calibration data, and must be loaded into the ADCB
CALH register.
TEMPSENSE0 and TEMPSENSE1 contains the 12-bit ADCA value from a temperature mea-
surements done with the internal temperature sensor. The measurements is done in production
test at 85C and can be used for single- or multi-point temperature sensor calibration.
Bit
+0x21
Read/Write
Initial Value
Bit
+0x20
Read/Write
Initial Value
Bit
+0x21
Read/Write
Initial Value
Bit
+0x2E
Read/Write
Initial Value
7
R
x
R
R
R
7
x
7
x
7
x
R
6
x
R
R
R
6
x
6
x
6
x
R
5
x
R
R
R
5
5
5
x
x
x
R
4
x
4
R
4
R
4
R
x
x
x
TEMPSENSE0[7:0]
ADCACAL1[7:0]
ADCBCAL0[7:0]
ADCBCAL1[7:0]
R
3
x
R
R
R
3
x
3
x
3
x
R
2
x
R
R
R
2
2
2
x
x
x
R
1
x
R
R
R
1
1
1
x
x
x
XMEGA A
R
0
x
0
R
0
R
0
R
x
x
x
TEMPSENSE0
ADCACAL1
ADCBCAL0
ADCBCAL1
40