ATxmega64A1 Atmel Corporation, ATxmega64A1 Datasheet - Page 147
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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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13.16.4
8077H–AVR–12/09
INTFLAGS - Interrupt Flag Register
• Bit 7:0 - IN[7:0]: Data Input Value
This register shows the value present on the pins if the digital input buffer is enabled. The config-
uration of "VPCTRLA - Virtual Port-map Control Register A" or "VPCTRLB - Virtual Port-map
Control Register B" decides the value in the register. When a port is mapped as virtual, access-
ing this register is identical to accessing the actual IN register for the port.
• 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.
The configuration of "VPCTRLA - Virtual Port-map Control Register A" or "VPCTRLB - Virtual
Port-map Control Register B" decides which the flags mapped. When a port is mapped as vir-
tual, accessing this register is identical to accessing the actual INTFLAGS register for the port.
Bit
+0x03
Read/Write
Initial Value
R
7
0
-
R
6
0
-
5
R
0
-
R
4
0
-
R
3
0
-
R
2
0
-
INT1IF
R/W
1
0
XMEGA A
INT0IF
R/W
0
0
INTFLAGS
147
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