ATmega16HVA Atmel Corporation, ATmega16HVA Datasheet - Page 39
ATmega16HVA
Manufacturer Part Number
ATmega16HVA
Description
Manufacturer
Atmel Corporation
Specifications of ATmega16HVA
Flash (kbytes)
16 Kbytes
Pin Count
28
Max. Operating Frequency
4 MHz
Cpu
8-bit AVR
# Of Touch Channels
3
Hardware Qtouch Acquisition
No
Max I/o Pins
6
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
6
Adc Resolution (bits)
12
Adc Speed (ksps)
1.9
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
256
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-20 to 85
I/o Supply Class
1.8 to 9.0
Operating Voltage (vcc)
1.8 to 9.0
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega16HVA-4TU
Manufacturer:
Atmel
Quantity:
20
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10.8
10.8.1
10.8.2
8024A–AVR–04/08
Register Description
SMCR – Sleep Mode Control Register
PRR0 – Power Reduction Register 0
The Sleep Mode Control Register contains control bits for power management.
• Bits 7:4 – Res: Reserved Bits
These bits are reserved bits in the ATmega8HVA/16HVA, 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 7:6, 4 - Res: Reserved bits
These bits are reserved for future use. For compatibility with future devices, these bits must be
written to zero when PRR0 is written.
• 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
0x33 (0x53)
Read/Write
Initial Value
Bit
(0x64)
Read/Write
Initial Value
SM2
0
0
0
0
1
1
1
1
R
Sleep Mode Select
7
–
0
R
7
–
0
R
6
–
0
R
6
–
0
SM1
0
0
1
1
0
0
1
1
PRVRM
R/W
5
0
R
5
–
0
4
–
R
0
R
4
–
0
SM0
PRSPI
0
1
0
1
0
1
0
1
R/W
3
0
SM2
R/W
3
0
PRTIM1
R/W
ATmega8HVA/16HVA
2
0
SM1
R/W
Sleep Mode
Idle
ADC Noise Reduction
Reserved
Power-save
Power-off
Reserved
Reserved
Reserved
2
0
PRTIM0
R/W
SM0
R/W
1
0
1
0
Table
PRVADC
R/W
R/W
SE
0
0
0
0
10-3.
SMCR
PRR0
39
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