ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 40

• Manufacturer Part Number: ATXMEGA256A3B-MH
• Description: MCU AVR 256KB FLASH A3B 64-QFN
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3B-MH

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Size: 256KB (128K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATXMEGA256x
• Core: AVR8
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 49
• Number Of Timers: 7
• Operating Supply Voltage: 1.6 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• On-chip Dac: 12 bit, 2 Channel
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATXMEGA256A3B-MU; ATXMEGA256A3B-MU

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
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