ATmega1281R231 Atmel Corporation, ATmega1281R231 Datasheet - Page 331

• Manufacturer Part Number: ATmega1281R231
• Manufacturer: Atmel Corporation

Specifications of ATmega1281R231

• Flash (kbytes): 128 Kbytes
• Max. Operating Frequency: 16 MHz
• Max I/o Pins: 54
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Crypto Engine: AES
• Sram (kbytes): 8
• Eeprom (bytes): 4096
• Operating Voltage (vcc): 1.8 to 3.6
• Timers: 6
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 2
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -101
• Receive Current Consumption (ma): 13.2
• Transmit Current Consumption (ma): 14.4
• Link Budget (dbm): 104

29.6.16
2549N–AVR–05/11
ATmega2560/2561 Boot Loader Parameters
Table 29-12. Explanation of different variables used in
Notes:
In
Self-Programming are given.
Table 29-13. Boot Size Configuration, ATmega2560/2561
Note:
Variable
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Table 29-13
1
1
0
0
1. Z0: should be zero for all SPM commands, byte select for the (E)LPM instruction.
2. See
3. The Z-register is only 16 bits wide. Bit 16 is located in the RAMPZ register in the I/O map.
1. The different BOOTSZ Fuse configurations are shown in
Z-pointer during Self-Programming.
1
0
1
0
ping to the Z-pointer, ATmega1280/1281 (Continued)
through
“Addressing the Flash During Self-Programming” on page 322
PC[15:7]
PC[6:0]
6
words
words
words
words
1024
2048
4096
512
Table 29-15 on page
Corresponding
Z-value
16
32
ATmega640/1280/1281/2560/2561
Z16
4
8
Z7:Z1
Z16
Z7
(3)
(3)
:Z8
(2)
0x00000 -
0x1FDFF
0x00000 -
0x1FBFF
0x00000 -
0x1F7FF
0x00000 -
0x1EFFF
332, the parameters used in the description of the
Description
Most significant bit which is used to address the
words within one page (128 words in a page
requires seven bits PC [6:0]).
Bit in Z-pointer that is mapped to PCMSB. Because
Z0 is not used, the ZPCMSB equals PCMSB + 1.
Bit in Z-pointer that is mapped to PCMSB. Because
Z0 is not used, the ZPAGEMSB equals PAGEMSB +
1.
Program Counter page address: Page select, for
Page Erase and Page Write
Program Counter word address: Word select, for
filling temporary buffer (must be zero during Page
Write operation)
0x1FE00 -
0x1FFFF
0x1FC00 -
0x1FFFF
0x1F800 -
0x1FFFF
0x1F000 -
0x1FFFF
Figure 29-3 on page 322
(1)
(1)
Figure 29-2 on page
0x1FDFF
0x1FBFF
0x1F7FF
0x1EFFF
for details about the use of
and the map-
320.
0x1FE00
0x1FC00
0x1F800
0x1F000
331