A000047 Arduino, A000047 Datasheet - Page 329

• Manufacturer Part Number: A000047
• Description: MCU, MPU & DSP Development Tools Mega2560
• Manufacturer: Arduino
• Series: -r
• Type: MCUr

Specifications of A000047

• Processor To Be Evaluated: ATmega2560
• Interface Type: USB, I2C, SPI
• Dimensions: 4 in x 2.1 in
• Operating Supply Voltage: 5 V
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ATmega2560

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