ATmega64RZAPV Atmel Corporation, ATmega64RZAPV Datasheet - Page 15
ATmega64RZAPV
Manufacturer Part Number
ATmega64RZAPV
Description
Manufacturer
Atmel Corporation
Specifications of ATmega64RZAPV
Flash (kbytes)
64 Kbytes
Max. Operating Frequency
20 MHz
Max I/o Pins
32
Spi
3
Twi (i2c)
1
Uart
2
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
Operating Voltage (vcc)
1.8 to 3.6
Timers
3
Frequency Band
2.4 GHz
Max Data Rate (mb/s)
0.25
Antenna Diversity
No
External Pa Control
No
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
16.0
Transmit Current Consumption (ma)
17.0
Link Budget (dbm)
104
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4.7
8011O–AVR–07/10
Reset and Interrupt Handling
Figure 4-5.
Figure 4-6
operation using two register operands is executed, and the result is stored back to the destina-
tion register.
Figure 4-6.
The AVR provides several different interrupt sources. These interrupts and the separate Reset
Vector each have a separate program vector in the program memory space. All interrupts are
assigned individual enable bits which must be written logic one together with the Global Interrupt
Enable bit in the Status Register in order to enable the interrupt. Depending on the Program
Counter value, interrupts may be automatically disabled when Boot Lock bits BLB02 or BLB12
are programmed. This feature improves software security. See the section
ming” on page 293
The lowest addresses in the program memory space are by default defined as the Reset and
Interrupt Vectors. The complete list of vectors is shown in
determines the priority levels of the different interrupts. The lower the address the higher is the
priority level. RESET has the highest priority, and next is INT0 – the External Interrupt Request
0. The Interrupt Vectors can be moved to the start of the Boot Flash section by setting the IVSEL
bit in the MCU Control Register (MCUCR). Refer to
The Reset Vector can also be moved to the start of the Boot Flash section by programming the
BOOTRST Fuse, see
When an interrupt occurs, the Global Interrupt Enable I-bit is cleared and all interrupts are dis-
abled. The user software can write logic one to the I-bit to enable nested interrupts. All enabled
Register Operands Fetch
2nd Instruction Execute
3rd Instruction Execute
1st Instruction Execute
ALU Operation Execute
2nd Instruction Fetch
3rd Instruction Fetch
4th Instruction Fetch
1st Instruction Fetch
Total Execution Time
shows the internal timing concept for the Register File. In a single clock cycle an ALU
Result Write Back
The Parallel Instruction Fetches and Instruction Executions
Single Cycle ALU Operation
for details.
clk
clk
”Memory Programming” on page
CPU
CPU
T1
T1
ATmega164P/324P/644P
”Interrupts” on page 61
T2
T2
293.
”Interrupts” on page
T3
T3
for more information.
”Memory Program-
61. The list also
T4
T4
15
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