ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 98

• 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

8.3.1
8.3.2
8.3.3
8291A–AVR–10/11
Idle Mode
Power-down Mode
Power-save Mode
Table 8-1 on page 98
and wake-up sources.
Table 8-1.
The wake-up time for the device is dependent on the sleep mode and the main clock source.
The startup time for the system clock source must be added to the wake-up time for sleep
modes where the system clock source is not kept running. For details on the startup time for the
different oscillator options, refer to
The content of the register file, SRAM and registers are kept during sleep. If a reset occurs dur-
ing sleep, the device will reset, start up, and execute from the reset vector.
In idle mode the CPU and nonvolatile memory are stopped (note that any ongoing programming
will be completed), but all peripherals, including the interrupt controller, event system and DMA
controller are kept running. Any enabled interrupt will wake the device.
In power-down mode, all clocks, including the real-time counter clock source, are stopped. This
allows operation only of asynchronous modules that do not require a running clock. The only
interrupts that can wake up the MCU are the two-wire interface address match interrupt, asyn-
chronous port interrupts, and the USB resume interrupt.
Power-save mode is identical to power down, with two exceptions:
Sleep Modes
Idle
Power down
Power save
Standby
Extended standby
1. If the real-time counter (RTC) is enabled, it will keep running during sleep, and the
2. If the LCD is enabled, it will keep running during sleep, and the device can wake up
device can also wake up from either an RTC overflow or compare match interrupt.
from LCD frame completed interrupt.
Active clock domains and wake-up sources in the different sleep modes.
shows the different sleep modes and the active clock domains, oscillators,
Active Clock Domain
”System Clock and Clock Options” on page
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Oscillators
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Atmel AVR XMEGA B
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Wake-up Sources
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76.
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98