PCIF0 datasheet(244/294 Pages) ATMEL

Nome de Peças	PCIF0

Descrição Electrónicos	High Performance, Low Power Atmel AVR 8-bit Microcontroller Advanced RISC Architecture

PDF	294 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ATMEL [ATMEL Corporation]

Página de início	http://www.atmel.com

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244 / 294 page

244

9219A–RFID–01/11

Atmel ATA5505 [Preliminary]

G. Load Address High byte

Set XA1, XA0 to “0,0”. This enables address loading.

Set BS1 to “1”. This selects high address.

Set DATA = Address high byte (0x00 - 0xFF).

Give XTAL1 a positive pulse. This loads the address high byte.

H. Program Page

Give WR a negative pulse. This starts programming of the entire page of data.

RDY/BSY goes low.

Wait until RDY/BSY goes high (See Figure 22-3 for signal waveforms).

I. Repeat B through H until the entire Flash is programmed or until all data has been

programmed.

J. End Page Programming

1. Set XA1, XA0 to “1,0”. This enables command loading.

Set DATA to “0000 0000

b”. This is the command for No Operation.

Give XTAL1 a positive pulse. This loads the command, and the internal write signals

are reset.

Figure 22-2. Addressing the Flash Which is Organized in Pages

Note:

1. PCPAGE and PCWORD are listed in

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

PCIF0 Folha de dados(PDF) 244 Page - ATMEL Corporation