Rainbow-electronics ATmega8515L Manuel d'utilisateur télécharger pdf (Page 182)

182

ATmega8515(L)

2512A–AVR–04/02

3. Wait until RDY/BSY goeshigh. (See Figure 76 forsignalwaveforms)

I.Repeat B throughHuntil the entire Flash isprogrammed or until all data hasbeen

programmed.

J. End Page Programming

1. 1. Set XA1,XA0 to “10”. This enablescommandloading.

2. Set DATA to “0000 0000”. This is the commandforNo Operation.

3. Give XTAL1apositive pulse. Thisloads the command, and theinternalwrite sig-

nals are reset.

Figure 75. Addressing the Flash which isOrganized in Pages

(1)

Note: 1. PCPAGE and PCWORD are listed in Table89 on page 179.

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

1 2 ... 177 178 179 180 181 182 183 184 185 186 187 ... 222 223

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Rainbow-electronics ATmega8515L Manuel d'utilisateur Page 182