ATxmega64B3 Atmel Corporation, ATxmega64B3 Datasheet - Page 346

• Manufacturer Part Number: ATxmega64B3
• Manufacturer: Atmel Corporation

Specifications of ATxmega64B3

• 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: 36
• Ext Interrupts: 36
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 100
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• 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: 2
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

25.16.4
25.16.5
8291A–AVR–10/11
INTFLAGS – Interrupt Flag registers
RESH – Result register High
Table 25-14. ADC interrupt mode.
• Bits 1:0 – INTLVL[1:0]: Interrupt Priority Level and Enable
These bits enable the ADC channel interrupt and select the interrupt level, as described in
rupts and Programmable Multilevel Interrupt Controller” on page
be triggered for conditions when the IF bit in the INTFLAGS register is set.
• Bit 7:1 – 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 0 – IF: Interrupt Flag
The interrupt flag is set when the ADC conversion is complete. If the channel is configured for
compare mode, the flag will be set if the compare condition is met. IF is automatically cleared
when the ADC channel interrupt vector is executed. The bit can also be cleared by writing a one
to the bit location.
For all result registers and with any ADC result resolution, a signed number is represented in 2’s
complement form, and the msb represents the sign bit.
The RESL and RESH register pair represents the 16-bit value, ADCRESULT. Reading and writ-
ing 16-bit values require special attention. Refer to
details.
Bit
+0x03
Read/Write
Initial Value
12-bit, left.
12-bit, right
8-bit
INTMODE[1:0]
00
01
10
11
Bit
+0x05
Read/Write
Initial Value
R
7
–
0
COMPLETE
BELOW
ABOVE
Group Configuration
R
6
–
0
R
7
–
–
0
R
0
5
–
R
6
–
–
0
R
4
–
0
R
5
–
–
0
Interrupt Mode
Conversion complete
Compare result below threshold
Reserved
Compare result above threshold
”Accessing 16-bit Registers” on page 11
R
3
–
0
R
4
–
–
0
Atmel AVR XMEGA B
RES[11:4]
R
2
–
0
R
3
–
0
101. The enabled interrupt will
R
1
–
0
R
2
–
0
RES[11:8]
R/W
IF
0
0
R
1
–
0
INTFLAGS
”Inter-
R
0
–
0
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for