ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 40
ATmega16HVB
Manufacturer Part Number
ATmega16HVB
Description
Manufacturer
Atmel Corporation
Specifications of ATmega16HVB
Flash (kbytes)
16 Kbytes
Pin Count
44
Max. Operating Frequency
8 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
17
Ext Interrupts
15
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
1.9
Resistive Touch Screen
No
Temp. Sensor
Yes
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 85
I/o Supply Class
4.0 to 25
Operating Voltage (vcc)
4.0 to 25
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
ATmega16HVB-8X3
Manufacturer:
LT
Quantity:
51
Part Number:
ATmega16HVB-8X3
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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10.8.2
40
ATmega16HVB/32HVB
PRR0 – Power Reduction Register 0
• Bits 7:4 – Reserved
These bits are reserved in the Atmel ATmega16HVB/32HVB, and will always read as zero.
• Bits 3:1 – SM2:0: Sleep Mode Select Bits 2, 1 and 0
These bits select between the four available sleep modes as shown in
Table 10-3.
• Bit 0 – SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
purpose, it is recommended to write the Sleep Enable (SE) bit to one just before the execution of
the SLEEP instruction and to clear it immediately after waking up.
• Bit 7, 4 – Reserved
These bits are reserved for future use. For compatibility with future devices, these bits must be
written to zero when PRR0 is written.
• Bit 6 – PRTWI: Power Reduction TWI
Writing a logic one to this bit shuts down the TWI by stopping the clock to the module. When
waking up the TWI again, the TWI should be re initialized to ensure proper operation.
• Bit 5 – PRVRM: Power Reduction Voltage Regulator Monitor
Writing a logic one to this bit shuts down the Voltage Regulator Monitor interface by stopping the
clock of the module.
• Bit 3 – PRSPI: Power Reduction Serial Peripheral Interface
Writing logic one to this bit shuts down the Serial Peripheral Interface by stopping the clock to
the module. When waking up the SPI again, the SPI should be reinitialized to ensure proper
operation.
Bit
(0x64)
Read/Write
Initial Value
SM2
0
0
0
0
1
1
1
1
Sleep Mode Select.
R
7
–
0
PRTWI
R/W
6
0
SM1
0
0
1
1
0
0
1
1
PRVRM
R/W
5
0
R
4
–
0
SM0
0
1
0
1
0
1
0
1
PRSPI
R/W
3
0
Sleep Mode
Idle
ADC Noise Reduction
Reserved
Power-save
Power-off
Reserved
Reserved
Reserved
PRTIM1
R/W
2
0
PRTIM0
R/W
1
0
Table
10-3.
PRVADC
R/W
0
0
8042D–AVR–10/11
PRR0
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