ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 39

• Manufacturer Part Number: ATMEGA16HVA-4CKU
• Description: MCU AVR 16K FLASH 4MHZ 36-LGA
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16HVA-4CKU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 7
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 9 V
• Data Converters: A/D 5x12b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 36-LGA
• Processor Series: ATMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRSB200, ATAVRSB201
• Minimum Operating Temperature: - 20 C
• On-chip Adc: 12 bit, 5 Channel
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
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