ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 119

• Manufacturer Part Number: ATmega16HVB
• Manufacturer: Atmel Corporation

Specifications of ATmega16HVB

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 8 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 17
• Ext Interrupts: 15
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1.9
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 4.0 to 25
• Operating Voltage (vcc): 4.0 to 25
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

20.4
20.4.1
20.4.2
8042D–AVR–10/11
Register description
VADMUX – V-ADC Multiplexer Selection Register
VADCSR – V-ADC Control and Status Register
• Bit 7:4 – Reserved
These bits are reserved in the Atmel ATmega16HVB/32HVB and will always read as zero.
• Bit 3:0 – VADMUX[3:0]: V-ADC Channel Selection Bits
The VADMUX bits determine the V-ADC channel selection. See
Table 20-1.
• Bit 7:4 – Reserved
These bits are reserved in the ATmega16HVB/32HVB and will always read as zero.
• Bit 3 – VADEN: V-ADC Enable
Writing this bit to one enables V-ADC conversion. By writing it to zero, the V-ADC is turned off.
Turning the V-ADC off while a conversion is in progress will terminate this conversion. Note that
the bandgap voltage reference must be enabled separately, see
123.
Bit
(0x7C)
Read/Write
Initial Value
Bit
(0x7A)
Read/Write
Initial Value
VADMUX[3:0]
1000...1111
0000
0001
0010
0011
0100
0101
0110
0111
VADMUX channel selection.
R
7
–
0
R
7
–
0
R
6
–
0
R
6
–
0
R
5
–
0
R
5
–
0
Channel selected
R
R
4
–
0
4
–
0
RESERVED
RESERVED
VTEMP
CELL1
CELL2
CELL3
CELL4
ADC0
ADC1
VADMUX3
VADEN
R/W
R/W
3
0
3
0
ATmega16HVB/32HVB
VADMUX2
VADSC
R/W
R/W
2
0
2
0
Table
”Bandgap calibration” on page
VADMUX1
VADCCIF
R/W
R/W
1
0
1
0
20-1.
VADMUX0
Scale
VADCCIE
0.2
0.2
0.2
0.2
1.0
1.0
1.0
R/W
–
–
R/W
0
0
0
0
VADMUX
VADCSR
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