ATMEGA8A-AUR Atmel, ATMEGA8A-AUR Datasheet - Page 211

• Manufacturer Part Number: ATMEGA8A-AUR
• Description: MCU AVR 8KB FLASH 16MHZ 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8A-AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22.8.3.2
8159D–AVR–02/11
ADLAR = 1
When an ADC conversion is complete, the result is found in these two registers.
When ADCL is read, the ADC Data Register is not updated until ADCH is read. Consequently, if
the result is left adjusted and no more than 8-bit precision is required, it is sufficient to read
ADCH. Otherwise, ADCL must be read first, then ADCH.
The ADLAR bit in ADMUX, and the MUXn bits in ADMUX affect the way the result is read from
the registers. If ADLAR is set, the result is left adjusted. If ADLAR is cleared (default), the result
is right adjusted.
• ADC9:0: ADC Conversion result
These bits represent the result from the conversion, as detailed in
page
Bit
Read/Write
Initial Value
207.
ADC9
ADC1
15
R
R
7
0
0
ADC8
ADC0
14
R
R
6
0
0
ADC7
13
R
R
–
5
0
0
ADC6
12
R
R
–
4
0
0
ADC5
11
R
R
–
3
0
0
ADC4
10
R
R
–
2
0
0
“ADC Conversion Result” on
ADC3
R
R
9
–
1
0
0
ATmega8A
ADC2
R
R
8
–
0
0
0
ADCH
ADCL
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