AT90PWM316 Atmel Corporation, AT90PWM316 Datasheet - Page 252
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AT90PWM316
Manufacturer Part Number
AT90PWM316
Description
Manufacturer
Atmel Corporation
Specifications of AT90PWM316
Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
27
Ext Interrupts
4
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
3
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
No
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 105
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
5
Output Compare Channels
16
Input Capture Channels
1
Pwm Channels
12
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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21.8.3
7710F–AVR–09/11
ADC Control and Status Register B– ADCSRB
Table 21-5.
Bit
Read/Write
Initial Value
• Bit 7 – ADHSM: ADC High Speed Mode
Writing this bit to one enables the ADC High Speed mode. Set this bit if you wish to convert with
an ADC clock frequency higher than 200KHz.
• Bit 3, 2, 1, 0– ADTS3:ADTS0: ADC Auto Trigger Source Selection Bits
These bits are only necessary in case the ADC works in auto trigger mode. It means if ADATE
bit in ADCSRA register is set.
In accordance with the Table 21-6, these 3 bits select the interrupt event which will generate the
trigger of the start of conversion. The start of conversion will be generated by the rising edge of
the selected interrupt flag whether the interrupt is enabled or not. In case of trig on PSCnASY
event, there is no flag. So in this case a conversion will start each time the trig event appears
and the previous conversion is completed..
Table 21-6.
ADPS2
0
0
0
0
1
1
1
1
ADTS3
0
0
0
0
0
0
0
0
1
1
ADC Prescaler Selection
ADC Auto Trigger Source Selection for non amplified conversions
ADPS1
0
0
1
1
0
0
1
1
ADTS2
0
0
0
0
1
1
1
1
0
0
ADHSM
7
0
-
6
0
-
-
ADPS0
0
1
0
1
0
1
0
1
ADTS1
0
0
1
1
0
0
1
1
0
0
5
0
-
-
Division Factor
2
2
4
8
16
32
64
128
ADTS0
0
1
0
1
0
1
0
1
0
1
4
0
-
-
ADTS3
R/W
3
0
Description
Free Running Mode
Analog Comparator 0
External Interrupt Request 0
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter1 Capture Event
PSC0ASY Event
PSC1ASY Event
ADTS2
AT90PWM216/316
R/W
2
0
ADTS1
R/W
1
0
(1)
ADTS0
R/W
0
0
ADCSRB
252
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