ATxmega64A1 Atmel Corporation, ATxmega64A1 Datasheet - Page 331
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ATxmega64A1
Manufacturer Part Number
ATxmega64A1
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega64A1
Flash (kbytes)
64 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
78
Ext Interrupts
78
Usb Speed
No
Usb Interface
No
Spi
12
Twi (i2c)
4
Uart
8
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
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
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
8
Output Compare Channels
24
Input Capture Channels
24
Pwm Channels
24
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega64A1-AU
Manufacturer:
Atmel
Quantity:
135
Company:
Part Number:
ATxmega64A1U-AU
Manufacturer:
ATMEL
Quantity:
953
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27.7
27.8
27.9
27.9.1
8077H–AVR–12/09
Input hysteresis
Power consumption vs. propagation delay
Register Description
ACnCTRL – Analog Comparator n Control Register
Figure 27-2. Analog Comparator Window Mode
Application software can select between no, low, and high hysteresis. Adding hysteresis can
avoid constant toggling of the output if the input signals are very close to each other and some
noise exists in either of the signals or in the system.
It is possible to enable High-speed mode to get the shortest possible propagation delay. This
mode consumes more power than the default Low-power mode that has a longer propagation
delay.
• Bits 7:6 - INTMODE[1:0]:Analog Comparator Interrupt Modes
These bits configure the interrupt mode for Analog Comparator n according to
Table 27-1.
Bit
+0x00 / +0x01
Read/Write
Initial Value
INTMODE[1:0]
U p p e r lim it o f w in d o w
In p u t s ig n a l
L o w e r lim it o f w in d o w
00
01
10
11
R/W
Analog Comparator n Interrupt Settings
7
0
INTMODE[1:0]
Group Configuration
R/W
6
0
BOTHEDGES
FALLING
RISING
-
R/W
5
0
INTLVL[1:0]
+
+
-
-
A C 0
A C 1
R/W
4
0
Comparator interrupt on output toggle
Comparator interrupt or event on rising output edge
Description
Reserved
Comparator interrupt or event on falling output edge
HSMODE
R/W
3
0
s e n s itiv ity
R/W
In te rru p t
2
0
HYSMODE[2:0]
c o n tro l
R/W
1
0
XMEGA A
In te rru p ts
Table
E v e n ts
ENABLE
R/W
0
0
27-1.
ACnCTRL
331
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