ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 143

• 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

8291A–AVR–10/11
Table 12-4.
• Bit 2:0 – ISC[2:0]: Input/Sense Configuration
These bits set the input and sense configuration on pin n according to
configuration decides how the pin can trigger port interrupts and events. If the input buffer is not
disabled, the input cannot be read in the IN register.
Table 12-5.
Note:
OPC[2:0]
ISC[2:0]
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
1. A low-level pin value will not generate events, and a high-level pin value will continuously gen-
2. Only PORTA - PORTE support the input buffer disable option. If the pin is used for analog
erate events.
functionality, such as AC or ADC, it is recommended to configure the pin to INPUT_DISABLE.
Output/pull configuration.
Input/sense configuration.
Group Configuration
TOTEM
BUSKEEPER
PULLDOWN
PULLUP
WIREDOR
WIREDAND
WIREDORPULL
WIREDANDPULL
Group Configuration
BOTHEDGES
RISING
FALLING
LEVEL
INTPUT_DISABLE
Output Configuration
Totem-pole
Totem-pole
Totem-pole
Totem-pole
Wired-OR
Wired-AND
Wired-OR
Wired-AND
Sense both edges
Sense rising edge
Sense falling edge
Sense low level
Reserved
Reserved
Reserved
Digital input buffer disabled
Atmel AVR XMEGA B
(1)
Description
Description
(2)
Pull Configuration
(N/A)
Bus-keeper
Pull-down (on input)
Pull-up (on input)
(N/A)
(N/A)
Pull-down
Pull-up
Table
12-5. The sense
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