ATxmega32A4U Atmel Corporation, ATxmega32A4U Datasheet - Page 425
ATxmega32A4U
Manufacturer Part Number
ATxmega32A4U
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32A4U
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
7
Twi (i2c)
2
Uart
5
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
2
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
4
Eeprom (bytes)
1024
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
5
Output Compare Channels
16
Input Capture Channels
16
Pwm Channels
16
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Price
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8331A–AVR–07/11
• Bit 2:0
These bits specify the number of IDLE bits of guard time that are inserted in between PDI recep-
tion and transmission direction changes. The default guard time is 128 IDLE bits, and the
available settings are shown in
tion, the guard time should be set to the lowest safe configuration accepted. No guard time is
inserted when switching from TX to RX mode.
Table 32-1.
–
GUARDTIME[2:0]: Guard Time
Guard time settings.
GUARDTIME
000
001
010
011
100
101
110
111
Table 32-1 on page
Atmel AVR XMEGA AU
425. In order to speed up the communica-
Number of IDLE Bits
128
64
32
16
8
4
2
2
425
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