ATxmega256A3U Atmel Corporation, ATxmega256A3U Datasheet - Page 188

• Manufacturer Part Number: ATxmega256A3U
• Manufacturer: Atmel Corporation

Specifications of ATxmega256A3U

• 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 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): 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

14.13 Register Summary
14.14 Interrupt Vector Summary
Table 14-9.
Note:
8331A–AVR–07/11
+0x10 to +0x1F
+0x22 to +0x25
+0x30 to +0x35
Address
+0x02D
+0x0A
+0x0B
+0x0C
+0x0D
+0x0E
+0x2A
+0x2B
+0x2C
+0x2E
+0x3A
+0x3B
+0x3C
+0x3D
+0x3E
+0x00
+0x01
+0x02
+0x03
+0x04
+0x05
+0x06
+0x07
+0x08
+0x09
+0x0F
+0x20
+0x21
+0x26
+0x27
+0x28
+0x29
+0x2F
+0x36
+0x37
+0x38
+0x39
+0x3F
Offset
0x0A
0x00
0x02
0x04
0x06
0x08
1. Available only on timer/counters with four compare or capture channels.
Name
Timer/counter interrupt vectors and their word offset address.
CTRLGCLR
CTRLGSET
CTRLFCLR
CTRLFSET
INTCTRLA
INTCTRLB
INTFLAGS
PERBUFH
CCABUFH
CCBBUFH
CCCBUFL
CCCBUFH
CCDBUFL
CCDBUFH
PERBUFL
CCABUFL
CCBBUFL
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
CTRLC
CTRLD
CTRLA
CTRLB
CTRLE
TEMP
CNTH
PERH
CCAH
CCBH
CCCH
CCDH
CNTL
PERL
CCAL
CCBL
CCCL
CCDL
CCC_vect
CCD_vect
ERR_vect
CCA_vect
CCB_vect
OVF_vect
Source
CCDEN
CCDIF
Bit 7
–
–
–
–
–
–
–
–
–
–
–
–
–
–
CCCINTLVL[1:0]
(1)
(1)
EVACT[2:0]
CCCEN
CCCIF
Bit 6
Interrupt Description
Timer/counter overflow/underflow interrupt vector offset
Timer/counter error interrupt vector offset
Timer/counter compare or capture channel A interrupt vector offset
Timer/counter compare or capture channel B interrupt vector offset
Timer/counter compare or capture channel C interrupt vector offset
Timer/counter compare or capture channel D interrupt vector offset
–
–
–
–
–
–
–
–
–
–
–
–
–
–
CCBEN
CCBIF
Bit 5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
CCCINTLVL[1:0]
CCAEN
CCDBV
CCDBV
EVDLY
Bit 4
CCAIF
–
–
–
–
–
–
–
–
–
–
–
–
CCCBUF[15:8]
CCDBUF[15:8]
PERBUF[15:8]
CCABUF[15:8]
CCBBUF[15:8]
CCABUF[7:0]
CCBBUF[7:0]
CCCBUF[7:0]
CCDBUF[7:0]
PERBUF[7:0]
TEMP[7:0]
CCC[15:8]
CCD[15:8]
CNT[15:8]
PER[8:15]
CCA[15:8]
CCB[15:8]
CCA[7:0]
CCB[7:0]
CCC[7:0]
CCD[7:0]
CNT[7:0]
PER[7:0]
CCCBV
CCCBV
CPMD
Bit 3
–
–
–
–
–
–
–
–
-
ERRINTLVL[1:0]
CCBINTLVL[1:0]
Atmel AVR XMEGA AU
CMD[1:0]
CMD[1:0]
CCBBV
CCBBV
Bit 2
CPMC
–
–
–
–
–
–
–
–
CLKSEL[3:0]
EVSEL[3:0]
WGMODE[2:0]
CCABV
CCABV
ERRIF
Bit 1
CPMB
LUPD
LUPD
–
–
–
–
–
–
CCAINTLVL[1:0]
OVINTLVL[1:0]
BYTEM
PERBV
PERBV
OVFIF
Bit 0
CPMA
DIR
DIR
–
–
–
–
–
–
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