ATMEGA1281-16AUR Atmel, ATMEGA1281-16AUR Datasheet - Page 329
![MCU AVR 128K FLASH 16MHZ 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA1281-16AUR
Manufacturer Part Number
ATMEGA1281-16AUR
Description
MCU AVR 128K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA1281-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
For Use With
ATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHTATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2549M–AVR–09/10
Table 28-8.
Note:
Table 28-9.
Note:
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
1. For details about these two section, see
1. Z0: should be zero for all SPM commands, byte select for the (E)LPM instruction.
2. See
(1)
318
Z-pointer during Self-Programming.
Read-While-Write Limit, ATmega640
Explanation of different variables used in
ping to the Z-pointer, ATmega640
and
“Addressing the Flash During Self-Programming” on page 322
PC[14:7]
PC[6:0]
“RWW – Read-While-Write Section” on page
14
6
ATmega640/1280/1281/2560/2561
Corresponding
Z-value
Z15:Z8
Z7:Z1
Z15
Z7
(2)
“NRWW – No Read-While-Write Section” on page
Description
Most significant bit in the Program Counter.
(The Program Counter is 15 bits PC[14:0]).
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).
Pages
224
32
Figure 28-3 on page 322
318.
(1)
Address
0x0000 - 0x6FFF
0x7000 - 0x7FFF
for details about the use of
and the map-
329
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