ATmega1284RZAP Atmel Corporation, ATmega1284RZAP Datasheet - Page 18

• Manufacturer Part Number: ATmega1284RZAP
• 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

6.3.1
8059D–AVR–11/09
Data Memory Access Times
The 32 general purpose working registers, 64 I/O registers, 160 Extended I/O Registers and the
16K bytes of internal data SRAM in the ATmega1284P are all accessible through all these
addressing modes. The Register File is described in
10.
Figure 6-2.
This section describes the general access timing concepts for internal memory access. The
internal data SRAM access is performed in two clk
Figure 6-3.
Address
clk
Data Memory Map
On-chip Data SRAM Access Cycles
Data
Data
WR
CPU
RD
Compute Address
160 Ext I/O Reg.
64 I/O Registers
Data Memory
Internal SRAM
32 Registers
T1
Memory Access Instruction
(16K x 8)
Address valid
CPU
T2
”General Purpose Register File” on page
cycles as described in
$40FF
$0000 - $001F
$0100
$0020 - $005F
$0060 - $00FF
Next Instruction
ATmega1284P
T3
Figure
6-3.
18