ATxmega128A1 Atmel Corporation, ATxmega128A1 Datasheet - Page 42
ATxmega128A1
Manufacturer Part Number
ATxmega128A1
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128A1
Flash (kbytes)
128 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)
8
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
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4.17.24
4.18
4.18.1
4.19
4.20
4.20.1
8077H–AVR–12/09
Register Description – General Purpose I/O Memory
Register Description – External Memory
Register Description – MCU Control
DACBOFFCAL - DACB Offset Calibration Register
GPIORn – General Purpose I/O Register n
DEVID0 - MCU Device ID Register 0
• Bit 7:0 - DACAGAINCAL[7:0] - DACB Gain Calibration Byte
This byte contains the gain calibration value for the Digital to Analog Converter B (DACB). Cali-
bration of the Digital to Analog Converters are done during production test of the device. The
calibration byte is not loaded automatically into the DAC Gain Calibration register, and this must
be done from software.
• Bit 7:0 - DACBOFFCAL[7:0] - DACB Offset Calibration Byte
This byte contains the offset calibration value for the Digital to Analog Converter B (DACB). Cal-
ibration of the Digital to Analog Converters are done during production test of the device. The
calibration byte is not loaded automatically into the DAC Offset Calibration register, and this
must be done from software.
This is a general purpose register that can be used to store data such as global variables in the
bit accessible I/O memory space.
Refer to
The DEVID0, DEVID1 and DEVID2 contains the 3-byte identification that identify each micro-
controller device type. For details on the actual ID refer to the device data sheet.
Bit
+n
Read/Write
Initial Value
Bit
+0x00
Read/Write
Initial Value
Bit
+0x33
Read/Write
Initial Value
”EBI - External Bus Interface” on page
R/W
7
R
0
1/0
7
0
R
7
R
6
0
R/W
1/0
6
0
R
6
R
5
0
R/W
5
0
1/0
R
5
R
4
0
DACBOFFCAL[7:0]
R/W
4
0
1/0
R
GPIORn[7:0]
4
DEVID0[7:0]
268.
R
3
x
R/W
3
0
1/0
R
3
R
2
x
R/W
2
0
1/0
R
2
R
1
x
R/W
1
0
1/0
R
1
XMEGA A
R
0
x
R/W
0
0
1/0
R
0
DACAOFFCAL
GPIORn
DEVID0
42
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