ATMEGA1281V-8MU Atmel, ATMEGA1281V-8MU Datasheet - Page 331

• Manufacturer Part Number: ATMEGA1281V-8MU
• Description: IC MCU AVR 128K FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1281V-8MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 6
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFPATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHT770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28.6.16
2549M–AVR–09/10
ATmega2560/2561 Boot Loader Parameters
Table 28-12. Explanation of different variables used in
Notes:
In
Self-Programming are given.
Table 28-13. Boot Size Configuration, ATmega2560/2561
Note:
Variable
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Table 28-13
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
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 28-15 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 28-3 on page 322
(1)
(1)
Figure 28-2 on page
0x1FDFF
0x1FBFF
0x1F7FF
0x1EFFF
for details about the use of
and the map-
320.
0x1FE00
0x1FC00
0x1F800
0x1F000
331