ATxmega256A3 Atmel Corporation, ATxmega256A3 Datasheet - Page 169

• 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

14.12.7
14.12.8
8077H–AVR–12/09
INTCTRLB - Interrupt Enable Register B
CTRLFCLR/CTRLFSET - Control Register F Clear/Set
• Bit 3:2 - ERRINTLVL[1:0]:Timer Error Interrupt Level
These bits enable the Timer Error Interrupt and select the interrupt level as described in
rupts and Programmable Multi-level Interrupt Controller” on page
• Bit 1:0 - OVFINTLVL[1:0]:Timer Overflow/Underflow Interrupt Level
These bits enable the Timer Overflow/Underflow Interrupt and select the interrupt level as
described in
• Bit 7:0 - CCxINTLVL[1:0] - Compare or Capture x Interrupt Level:
These bits enable the Timer Compare or Capture Interrupt and select the interrupt level as
described in
This register is mapped into two I/O memory locations, one for clearing (CTRLxCLR) and one for
setting the register bits (CTRLxSET) when written. Both memory locations yield the same result
when read.
The individual status bit can be set by writing a one to its bit location in CTRLxSET, and cleared
by writing a one to its bit location in CTRLxCLR. This each bit to be set or cleared without using
of a Read-Modify-Write operation on a single register.
• Bit 7:4 - Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
Bit
+0x07
Read/Write
Initial Value
Bit
+0x08
Read/Write
Initial Value
Bit
+0x09
Read/Write
Initial Value
”Interrupts and Programmable Multi-level Interrupt Controller” on page
”Interrupts and Programmable Multi-level Interrupt Controller” on page
R/W
CCDINTLVL[1:0]
7
0
R
R
7
0
7
0
-
-
R/W
R
R
6
0
6
0
6
0
-
-
R/W
R
R
5
0
5
0
-
-
5
CCCINTLVL[1:0]
0
R
4
0
4
R
0
-
-
R/W
4
0
R/W
R
3
0
3
0
R/W
CMD[1:0]
CMD[1:0]
CCBINTLVL[1:0]
3
0
R/W
R
2
0
2
0
R/W
2
0
123.
LUPD
LUPD
R/W
R/W
1
0
1
0
R/W
CCAINTLVL[1:0]
1
0
R/W
R/W
DIR
DIR
XMEGA A
0
0
0
0
R/W
0
0
123.
123.
CTRLFCLR
CTRLFSET
INTCTRLB
”Inter-
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