ATxmega128D4 Atmel Corporation, ATxmega128D4 Datasheet - Page 254
ATxmega128D4
Manufacturer Part Number
ATxmega128D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128D4
Flash (kbytes)
128 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
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)
8
Eeprom (bytes)
2048
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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21.9.3
21.9.4
8210B–AVR–04/10
CTRLA – Control Register A
CTRLB – Control Register B
Table 21-3.
• Bits 2:0 - MUXNEG[2:0]: Analog Comparator Negative Input MUX Selection
These bits select which input to be connected to the negative input of Analog Comparator n,
according to
Table 21-4.
• Bits 7:1 - Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 0 – AC0OUT: Analog Comparator Output
Setting this bit makes the output of Analog Comparator 0 available on pin 7 on the same port.
• Bits 7:6 - Res - Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
Bit
+0x05
Read/Write
Initial Value
Bit
+0x04
Read/Write
Initial Value
MUXNEG[2:0]
101
110
111
000
001
010
011
100
101
110
111
Table 21-4 on page
R/W
R
7
–
0
7
–
0
Analog Comparator n Positive Input MUX Selection (Continued)
Analog Comparator n Negative Input MUX Selection
Group Configuration
R/W
R
6
–
0
6
–
0
BANDGAP
SCALER
PIN5
PIN6
PIN0
PIN1
PIN3
PIN5
PIN7
-
-
R/W
254.
R
5
0
5
–
0
R/W
R
4
0
4
–
0
R/W
R
3
0
3
–
0
SCALEFAC[5:0]
Negative Input MUX Selection
Internal Bandgap Voltage
VCC Voltage Scaler
R/W
R
2
–
0
2
0
Reserved
Reserved
Pin 5
Pin 6
Pin 0
Pin 1
Pin 3
Pin 5
Pin 7
R/W
R
1
–
0
1
0
XMEGA D
AC0OUT
R/W
R/W
0
0
0
0
CTRLA
CTRLB
254
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