ATMEGA128A-ANR Atmel, ATMEGA128A-ANR Datasheet - Page 299
ATMEGA128A-ANR
Manufacturer Part Number
ATMEGA128A-ANR
Description
IC MCU AVR 128K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128A-ANR
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
53
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K 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
Core
AVR8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Company
Part Number
Manufacturer
Quantity
Price
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26.6.5
8151H–AVR–02/11
Programming the EEPROM
Figure 26-2. Addressing the Flash which is Organized in Pages
Note:
Figure 26-3. Programming the Flash Waveforms
Note:
The EEPROM is organized in pages, see
EEPROM, the program data is latched into a page buffer. This allows one page of data to be
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
Data loading):
RESET +12V
PROGRAM MEMORY
RDY/BSY
1. PCPAGE and PCWORD are listed in
1. “XX” is don’t care. The letters refer to the programming description above.
PAGEL
XTAL1
DATA
XA1
XA0
BS1
BS2
WR
OE
PROGRAM
COUNTER
PAGE
PAGE ADDRESS
WITHIN THE FLASH
“Programming the Flash” on page 297
0x10
A
PCMSB
ADDR. LOW
B
PCPAGE
DATA LOW
C
DATA HIGH
D
PAGEMSB
PCWORD
E
XX
WORD ADDRESS
WITHIN A PAGE
Table 26-11 on page
ADDR. LOW DATA LOW
Table 26-11 on page
B
INSTRUCTION WORD
C
F
DATA HIGH
PAGE
for details on Command, Address and
D
XX
E
296.
ADDR. HIGH
296. When programming the
G
ATmega128A
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
H
XX
299
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