ATxmega16A4 Atmel Corporation, ATxmega16A4 Datasheet - Page 142
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ATxmega16A4
Manufacturer Part Number
ATxmega16A4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega16A4
Flash (kbytes)
16 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
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)
3.3
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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Manufacturer
Quantity
Price
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Quantity:
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Part Number:
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13.14.13 INTFLAGS - Interrupt Flag Register
13.14.14 PINnCTRL - Pin n Configuration Register
8077H–AVR–12/09
• Bit 7:2 - Reserved
These bits are reserved and will always be read as zero. For compatibility with future devices,
always write these bits to zero when this register is written.
• Bit 1:0 - INTnIF: Interrupt n Flag
The INTnIF flag is set when a pin change according to the pin's input sense configuration
occurs, and the pin is set as source for port interrupt n. Writing a one to this flag's bit location will
clear the flag. For enabling and executing the interrupt refer to the interrupt level description.
• Bit 7 - SRLEN: Slew Rate Limit Enable
Setting this bit will enable slew-rate limiting on pin n.
• Bit 6 - INVEN: Inverted I/O Enable
Setting this bit will enable inverting output and input data on pin n.
• Bit 5:3 - OPC: Output and Pull Configuration
These bits set the Output/Pull configuration on pin n according to
Table 13-4.
Bit
Read/Write
Initial Value
Bit
+0x0C
Read/Write
Initial Value
OPC[2:0]
000
001
010
011
100
101
110
111
SRLEN
R/W
7
R
0
7
0
-
Output/Pull Configuration
Group Configuration
TOTEM
BUSKEEPER
PULLDOWN
PULLUP
WIREDOR
WIREDAND
WIREDORPULL
WIREDANDPULL
INVEN
R/W
6
R
0
6
0
-
R/W
R
5
0
5
0
-
OPC[2:0]
R/W
R
4
0
4
0
-
Output configuration
Totempole
Totempole
Totempole
Totempole
Wired OR
Wired AND
Wired OR
Wired AND
R/W
R
3
0
3
0
-
R/W
R
2
0
2
0
-
Description
Table
ISC[2:0]
INT1IF
R/W
R/W
1
0
1
0
Pull configuration
(N/A)
Bus keeper
Pull-down (on input)
Pull-up (on input)
(N/A)
(N/A)
Pull-down
Pull-up
13-4.
XMEGA A
INT0IF
R/W
R/W
0
0
0
0
INTFLAGS
PINnCTRL
142
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