ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 166

• Manufacturer Part Number: ATxmega128B1
• Manufacturer: Atmel Corporation

Specifications of ATxmega128B1

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 32 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 53
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Segment Lcd: 160
• 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
• Temp. Sensor: Yes
• Crypto Engine: AES/DES
• Sram (kbytes): 8
• 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: 3
• Output Compare Channels: 10
• Input Capture Channels: 10
• Pwm Channels: 10
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

13.12.3
8291A–AVR–10/11
CTRLC – Control register C
• Bit 3 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write
this bit to zero when this register is written.
• Bit 2:0 – WGMODE[2:0]: Waveform Generation Mode
These bits select the waveform generation mode, and control the counting sequence of the
counter, TOP value, UPDATE condition, interrupt/event condition, and type of waveform that is
generated according to
No waveform generation is performed in the normal mode of operation. For all other modes, the
result from the waveform generator will only be directed to the port pins if the corresponding
CCxEN bit has been set to enable this. The port pin direction must be set as output.
Table 13-4.
• 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 3:0 – CMPx: Compare Output Value x
These bits allow direct access to the waveform generator's output compare value when the
timer/counter is set in the OFF state. This is used to set or clear the WG output value when the
timer/counter is not running.
Bit
+0x02
Read/Write
Initial Value
WGMODE[2:0]
000
001
010
011
100
101
110
111
Timer waveform generation mode.
R
7
–
0
SINGLESLOPE
Configuration
DSBOTTOM
NORMAL
DSBOTH
DSTOP
Table 13-4 on page
Group
R
6
–
0
FRQ
R
5
–
0
Mode of
Operation
Normal
Frequency
Reserved
Single-slope
PWM
Reserved
Dual-slope PWM
Dual-slope PWM
Dual-slope PWM
R
4
–
0
166.
CMPD
R/W
3
0
Atmel AVR XMEGA B
Top
PER
CCA
–
PER
–
PER
PER
PER
CMPC
R/W
2
0
Update
TOP
TOP
–
BOTTOM
–
BOTTOM
BOTTOM
BOTTOM
CMPB
R/W
1
0
OVFIF/Event
TOP
TOP
–
BOTTOM
–
TOP
TOP and BOTTOM
BOTTOM
CMPA
R/W
0
0
CTRLC
166