AT90PWM81-16SF Atmel, AT90PWM81-16SF Datasheet - Page 220
AT90PWM81-16SF
Manufacturer Part Number
AT90PWM81-16SF
Description
IC MCU AVR 8K FLASH ISP 20SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM81-16MN.pdf
(325 pages)
Specifications of AT90PWM81-16SF
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, PWM, WDT
Number Of I /o
16
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
20-SOIC (7.5mm Width)
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90PWM81-16SF
Manufacturer:
Atmel
Quantity:
2 428
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17.8.4
17.8.4.1
220
AT90PWM81
ADC Result Data Registers – ADCH and ADCL
ADLAR = 0
In case of trig on PSCnASY event, there is no flag. So, if ADSSEN is reset, a conversion will start each
time the trig event appears and the previous conversion is completed ..
Table 17-6.
When an ADC conversion is complete, the conversion results are stored in these two result data registers.
When the ADCL register is read, the two ADC result data registers can’t be updated until the ADCH reg-
ister has also been read.
Consequently, in 10-bit configuration, the ADCL register must be read first before the ADCH.
Nevertheless, to work easily with only 8-bit precision, there is the possibility to left adjust the result
thanks to the ADLAR bit in the ADCSRA register. Like this, it is sufficient to only read ADCH to have
the conversion result.
Bit
Read/Write
Initial Value
ADTS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
ADC Auto Trigger Source Selection
7
-
ADC7
R
R
0
0
ADTS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
6
-
ADC6
R
R
0
0
ADTS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
5
-
ADC5
R
R
0
0
4
-
ADC4
R
R
0
0
ADTS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
3
-
ADC3
R
R
0
0
Description
Free Running Mode
Analog Comparator 1
External Interrupt Request 0
Timer/Counter1 Overflow
Timer/Counter1 Capture Event
PSCRASY Event
PSC2ASY Event
Analog comparator 2
Analog comparator 3
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
2
-
ADC2
R
R
0
0
1
ADC9
ADC1
R
R
0
0
0
ADC8
ADC0
R
R
0
0
7734P–AVR–08/10
ADCH
ADCL
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