ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 252
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ATxmega32D4
Manufacturer Part Number
ATxmega32D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32D4
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 Speed
No
Usb Interface
No
Spi
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
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
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Manufacturer
Quantity
Price
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21.7
21.8
21.9
21.9.1
8210B–AVR–04/10
Input hysteresis
Power consumption vs. propagation delay
Register Description
ACnCTRL – Analog Comparator n Control Register
Figure 21-2. 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 21-1.
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 D
In te rru p ts
Table
E v e n ts
ENABLE
R/W
0
0
21-1.
ACnCTRL
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