ATmega328P datasheet(304/448 Pages) ATMEL

No. de pieza	ATmega328P

Descripción Electrónicos	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

PDF	448 Pages

Scroll/Zoom	100%

Fabricante Electrónico	ATMEL [ATMEL Corporation]

Página de inicio	http://www.atmel.com

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304 / 448 page

304

8161D–AVR–10/09

ATmega48PA/88PA/168PA/328P

Figure 27-2. Addressing the Flash Which is Organized in Pages

(1)

Note:

1. PCPAGE and PCWORD are listed in Table 27-11 on page 299.

Figure 27-3. Programming the Flash Waveforms(1)

Note:

1. “XX” is don’t care. The letters refer to the programming description above.

27.7.5

Programming the EEPROM

The EEPROM is organized in pages, see Table 27-12 on page 299. When programming the

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 ”Programming the Flash” on page 302 for details on Command, Address and

Data loading):

A: Load Command “0001 0001”.

G: Load Address High Byte (0x00 - 0xFF).

B: Load Address Low Byte (0x00 - 0xFF).

C: Load Data (0x00 - 0xFF).

PROGRAM MEMORY

WORD ADDRESS

WITHIN A PAGE

PAGE ADDRESS

WITHIN THE FLASH

INSTRUCTION WORD

PAGE

PCWORD[PAGEMSB:0]:

PAGEEND

PAGE

PCWORD

PCPAGE

PCMSB

PAGEMSB

PROGRAM

COUNTER

RDY/BSY

RESET +12V

PAGEL

BS2

0x10

ADDR. LOW

ADDR. HIGH

DATA

DATA LOW

DATA HIGH

ADDR. LOW

DATA LOW

DATA HIGH

XA1

XA0

BS1

XTAL1

ATmega328P Datasheet(PDF) 304 Page - ATMEL Corporation

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