ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 114

• Manufacturer Part Number: ATMEGA16HVA-4CKU
• Description: MCU AVR 16K FLASH 4MHZ 36-LGA
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16HVA-4CKU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 7
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 9 V
• Data Converters: A/D 5x12b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 36-LGA
• Processor Series: ATMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRSB200, ATAVRSB201
• Minimum Operating Temperature: - 20 C
• On-chip Adc: 12 bit, 5 Channel
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20.4
20.4.1
20.4.2
114
Register Description
ATmega8HVA/16HVA
VADMUX – V-ADC Multiplexer Selection Register
VADCSR – V-ADC Control and Status Register
• Bit 7:4 – RES: Reserved Bits
These bits are reserved bits in the ATmega8HVA/16HVA and will always read as zero.
• Bit 3:0 – VADMUX3:0: V-ADC Channel Selection Bits
The VADMUX bits determine the V-ADC channel selection. See
Table 20-1.
Note:
• Bit 7:4 – RES: Reserved Bits
These bits are reserved bits in the ATmega8HVA/16HVA 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 “BGCCR – Bandgap Calibra-
tion C Register” on page 118.
• Bit 2 – VADSC: Voltage ADC Start Conversion
Write this bit to one to start a new conversion of the selected channel.
Bit
(0x7C)
Read/Write
Initial Value
Bit
(0x7A)
Read/Write
Initial Value
1. VTEMP must be measured in Active mode to get the highest accuracy when using calibration
VADMUX3:0
0111...1111
value stored in signature row.
0000
0001
0010
0011
0100
0101
0110
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
RESERVED
VTEMP
CELL 1
CELL 2
ADC0
ADC1
VADMUX3
VADEN
R/W
R/W
3
0
3
0
(1)
VADMUX2
VADSC
R/W
R/W
2
0
2
0
Table 20-1 on page
VADMUX1
VADCCIF
R/W
R/W
1
0
1
0
VADMUX0
Scale
VADCCIE
0.2
0.2
1.0
1.0
1.0
R/W
–
–
–
R/W
0
0
0
0
8024A–AVR–04/08
114.
VADMUX
VADCSR