Rainbow-electronics ATtiny2313 Manuel d'utilisateur télécharger pdf (Page 167)

167

ATtiny2313

2543A–AVR–08/03

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

programmed.

J. End Page Programming

1. 1. Set XA1, XA0 to “10”. This enables command loading.

2. Set DATA to “0000 0000”. This is the command for No Operation.

3. Give XTAL1 a positive pulse. This loads the command, and the internal write sig-

nals are reset.

Figure 69. Addressing the Flash Which is Organized in Pages

(1)

Note: 1. PCPAGE and PCWORD are listed in Table 74 on page 164.

Figure 70. Programming the Flash Waveforms

(1)

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

PROGRAM MEMORY

WORD ADDRESS

WITHIN A PAGE

PAGE ADDRESS

WITHIN THE FLASH

INSTRUCTION WORD

PAGE

PCWORD[PAGEMSB:0]:

PAGEEND

PAGE

PCWORDPCPAGE

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

XX XX

ABCDEBCDEGH

1 2 ... 162 163 164 165 166 167 168 169 170 171 172 ... 210 211

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Rainbow-electronics ATtiny2313 Manuel d'utilisateur Page 167

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