ATxmega64A3U Atmel Corporation, ATxmega64A3U Datasheet - Page 41
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ATxmega64A3U
Manufacturer Part Number
ATxmega64A3U
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega64A3U
Flash (kbytes)
64 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 Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
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)
4
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
7
Output Compare Channels
22
Input Capture Channels
22
Pwm Channels
22
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega64A3U-AU
Manufacturer:
ACTEL
Quantity:
101
Part Number:
ATxmega64A3U-MH
Manufacturer:
TI/德州仪器
Quantity:
20 000
- Current page: 41 of 505
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4.17.18
4.17.19
4.17.20
4.17.21
8331A–AVR–07/11
USBCAL1 – USB Pad Calibration Register 1
RCOSC48M – USB RCOSC Calibration
ADCACAL0 – ADCA Calibration Register 0
ADCACAL1 – ADCA Calibration Register 1
• Bit 7:0 – USBCAL1[7:0]: USB Pad Calibration Register 1
This byte contains byte 1 of the USB pin calibration data, and must be loaded into the USB
CALH register.
• Bit 7:0 – RCOSC48M[7:0]: 48MHz RSCOSC Calibration
This byte contains a 48MHz calibration value for the internal 32MHz oscillator. When this cali-
bration value is written to calibration register B for the 32MHz DFLL, the oscillator is calibrated to
48MHz to enable full-speed USB operation from internal oscillator.
Note:
ADCACAL0 and ADCACAL1 contain the calibration value for the analogtodigital converter A
(ADCA). Calibration is done during production test of the device. The calibration bytes are not
loaded automatically into the ADC calibration registers, so this must be done from software.
• Bit 7:0 – ADCACAL0[7:0]: ADCA Calibration Byte 0
This byte contains byte 0 of the ADCA calibration data, and must be loaded into the ADCA CALL
register.
Bit
+0x1B
Read/Write
Initial Value
Bit
+0x1C
Read/Write
Initial Value
Bit
+0x20
Read/Write
Initial Value
Bit
+0x21
Read/Write
Initial Value
The COMP2 and COMP1 registers inside the DFLL32M must be set to B71B.
R
R
R
R
7
x
7
x
7
x
7
x
R
R
R
R
6
x
6
x
6
x
6
x
R
R
R
R
5
5
5
5
x
x
x
x
4
R
4
R
4
R
4
R
x
x
x
x
48MBRCOSC[7:0]
ADCACAL0[7:0]
ADCACAL1[7:0]
USBCAL1[7:0]
R
R
R
R
3
x
3
x
3
x
3
x
Atmel AVR XMEGA AU
R
R
R
R
2
2
2
2
x
x
x
x
R
R
R
R
1
1
1
1
x
x
x
x
0
R
0
R
0
R
0
R
x
x
x
x
48MBRCOSC
ADCACAL0
ADCACAL1
USBCAL1
41
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