ATxmega256A3 Atmel Corporation, ATxmega256A3 Datasheet - Page 94

• Manufacturer Part Number: ATxmega256A3
• 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

7.12
7.13
7.14
7.15
Table 7-8.
8077H–AVR–12/09
Address
Address
Address
+0x0C
+0x0D
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
+0x08
+0x09
+0x0A
+0x0B
+0x0E
+0x0F
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
Offset
0x00
Register Summary - Clock
Register Summary - Oscillator
Register Summary - DFLL32M/DFLL2M
Crystal Oscillator Failure Interrupt Vector Summary
Name
Name
Name
XOSCCTRL
RC32KCAL
DFLLCTRL
XOSCFAIL
Crystal Oscillator Failure Interrupt vector and its word offset address Crystal Oscillator Failure interrupt base
RTCCTRL
Reserved
Reserved
Reserved
Reserved
PLLCTRL
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
PSCTRL
STATUS
COMP0
COMP1
COMP2
COMP2
LOCK
CTRL
CTRL
CTRL
CALA
CALB
OSCF_vect
Bit 7
Bit 7
Bit 7
Source
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
FRQRANGE[1:0]
PLLSRC[1:0]
Bit 6
Bit 6
Bit 6
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Interrupt Description
Crystal Oscillator Failure Interrupt Vector (NMI)
X32KLPM
Bit 5
Bit 5
Bit 5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
-
PSADIV[4:0]
PLLRDY
PLLEN
Bit 4
Bit 4
Bit 4
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
RC32KCAL[7:0]
COMP[23:16]
COMP[15:8]
COMP[7:0]
COMP[7:0]
CALL[7:0]
XOSCRDY
XOSCEN
Bit 3
Bit 3
Bit 3
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
RTCSRC[2:0]
RC32KRDY
PLLFAC[4:0]
RC32KEN
CALH[11:8]
Bit 2
Bit 2
Bit 2
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
XOSCSEL[3:0]
SCLKSEL[2:0]
R32MRDY
R32MEN
Bit 1
Bit 1
Bit 1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
PSBCDIV[1:0]
RC2MRDY
RC2MEN
ENABLE
RTCEN
XMEGA A
Bit 0
Bit 0
Bit 0
LOCK
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
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