ATmega1284RZAP Atmel Corporation, ATmega1284RZAP Datasheet - Page 10
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ATmega1284RZAP
Manufacturer Part Number
ATmega1284RZAP
Description
Manufacturer
Atmel Corporation
Specifications of ATmega1284RZAP
Flash (kbytes)
128 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)
16
Eeprom (bytes)
4096
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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5.4
8059D–AVR–11/09
General Purpose Register File
The Register File is optimized for the AVR Enhanced RISC instruction set. In order to achieve
the required performance and flexibility, the following input/output schemes are supported by the
Register File:
• One 8-bit output operand and one 8-bit result input
• Two 8-bit output operands and one 8-bit result input
• Two 8-bit output operands and one 16-bit result input
• One 16-bit output operand and one 16-bit result input
Figure 5-2
Figure 5-2.
Most of the instructions operating on the Register File have direct access to all registers, and
most of them are single cycle instructions.
As shown in
directly into the first 32 locations of the user Data Space. Although not being physically imple-
mented as SRAM locations, this memory organization provides great flexibility in access of the
registers, as the X-, Y- and Z-pointer registers can be set to index any register in the file.
Registers
Purpose
shows the structure of the 32 general purpose working registers in the CPU.
General
Working
Figure
AVR CPU General Purpose Working Registers
5-2, each register is also assigned a data memory address, mapping them
7
R13
R14
R15
R16
R17
R26
R27
R28
R29
R30
R31
R0
R1
R2
…
…
0
Addr.
0x0D
0x1C
0x1D
0x00
0x01
0x02
0x0E
0x0F
0x10
0x11
0x1A
0x1B
0x1E
0x1F
ATmega1284P
X-register High Byte
Y-register High Byte
Z-register High Byte
X-register Low Byte
Y-register Low Byte
Z-register Low Byte
10
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