ATMEGA169PA-MNR Atmel, ATMEGA169PA-MNR Datasheet - Page 235
ATMEGA169PA-MNR
Manufacturer Part Number
ATMEGA169PA-MNR
Description
MCU AVR 384KB FLASH 16MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169PA-MNR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 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
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22.9.3
22.9.3.1
22.9.3.2
22.9.4
8284A–AVR–10/10
ADCL and ADCH – The ADC Data Register
ADCSRB – ADC Control and Status Register B
ADLAR = 0
ADLAR = 1
Table 22-6.
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
(0x79)
(0x78)
Read/Write
Initial Value
Bit
(0x79)
(0x78)
Read/Write
Initial Value
Bit
(0x7B)
Read/Write
Initial Value
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
230.
ADPS2
1
1
1
ADC Prescaler Selections (Continued)
ADC7
ADC9
ADC1
15
15
R
R
–
7
0
0
R
R
7
0
0
R
7
–
0
ADC6
ADC8
ADC0
ACME
R/W
14
14
ADPS1
R
R
R
R
–
6
0
0
6
0
0
6
0
0
1
1
ADC5
ADC7
13
13
R
R
R
R
–
5
0
0
–
5
0
0
R
5
–
0
ADC4
ADC6
12
12
R
R
R
R
–
4
0
0
0
–
4
0
R
4
–
0
ADPS0
1
0
1
ADC3
ADC5
11
11
R
R
–
3
0
0
R
R
R
–
3
0
0
3
–
0
ADTS2
ADC2
ADC4
R/W
10
10
R
R
–
2
0
0
R
R
–
2
0
0
2
0
”ADC Conversion Result” on
ADTS1
ADC9
ADC1
ADC3
Division Factor
R/W
R
R
9
1
0
0
R
R
9
–
1
0
0
1
0
128
32
64
ADTS0
ADC8
ADC0
ADC2
R/W
8
0
R
R
0
0
R
R
0
0
8
–
0
0
0
ADCSRB
ADCH
ADCL
ADCH
ADCL
235
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