ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 242
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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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20.13.2
8210B–AVR–04/10
MUXCTRL - ADC Channel MUX Control registers
Table 20-6.
Table 20-7.
The MUX register defines the input source for the channel.
• Bit 7 - Reserved
This bit is unused and reserved for future use. For compatibility reasons always write this bit to
zero when this register is written.
• Bits 6:3 - MUXPOS[3:0]: MUX selection on Positive ADC input
These bits define the MUX selection for the positive ADC input.
Table 20-9 on page 243
Table 20-8.
Bit
+0x01
Read/Write
Initial Value
INPUTMODE[1:0]
INPUTMODE[1:0]
MUXPOS[2:0]
00
01
10
11
00
01
10
11
000
001
010
011
100
101
110
111
Input Modes, CONVMODE=0 (unsigned mode)
Input Modes, CONVMODE=1 (signed mode)
ADC MUXPOS Configuration when INPUTMODE[1:0] = 00 (Internal) is used
R
7
–
0
shows the possible input selection for the different input modes.
R/W
6
0
Group Configuration
Group Configuration
Group Configuration
SINGLEENDED
SINGLEENDED
SCALEDVCC
DIFFWGAIN
INTERNAL
BANDGAP
INTERNAL
TEMP
R/W
DIFF
5
0
MUXPOS[3:0]
R/W
4
0
R/W
Description
Internal positive input signal
Single-ended positive input signal
Reserved
Reserved
Description
Internal positive input signal
Single-ended positive input signal
Differential input signal
Differential input signal with gain
3
0
Temperature Reference.
R
2
–
0
Bandgap voltage
1/10 scaled V
Analog input
Table 20-8 on page 242
Reserved
Reserved
Reserved
Reserved
Reserved
R/W
1
0
MUXNEG[1:0]
XMEGA D
CC
R/W
0
0
MUXCTRL
and
242