ATxmega32A4 Atmel Corporation, ATxmega32A4 Datasheet - Page 116

• Manufacturer Part Number: ATxmega32A4
• Manufacturer: Atmel Corporation

Specifications of ATxmega32A4

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• Usb Speed: No
• Usb Interface: No
• Spi: 7
• Twi (i2c): 2
• Uart: 5
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 4
• Eeprom (bytes): 1024
• 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: 16
• Input Capture Channels: 16
• Pwm Channels: 16
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

10.6.4
10.7
8077H–AVR–12/09
Address
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
Register Summary
BACKUP1: Battery Backup Register 1
BACKUP0
BACKUP1
STATUS
Name
CTRL
BBPWR
Bit 7
• Bit [7:0] - BACKUP0: Battery Backup Register 0
This register can be used to store data in the Battery Backup Module before the main power is
lost or removed.
• Bit [7:0] - BACKUP0: Battery Backup Register 1
This register can be used to store data in the Battery Backup Module before the main power is
lost or removed.
Bit
+0x03
Read/Write
Reset Value
Bit 6
R/W
7
x
Bit 5
R/W
6
x
R/W
XOSCSEL
5
x
Bit 4
BACKUP0[7:0]
BACKUP1[7:0]
R/W
BACKUP1[7:0]
4
x
XOSCRDY
XOSCEN
Bit 3
R/W
3
x
XOSCFDEN
OSCFAIL
Bit 2
R/W
2
x
R/W
BBBODF
1
ACCEN
x
Bit 1
R/W
0
x
XMEGA A
BBPODF
RESET
Bit 0
BACKUP1
Page
114
115
115
116
116