ATMEGA128-16AU SL383 Atmel, ATMEGA128-16AU SL383 Datasheet - Page 294

• Manufacturer Part Number: ATMEGA128-16AU SL383
• Manufacturer: Atmel

294
ATmega128
3. Set DATA = Address high byte ($00 - $FF).
4. Give XTAL1 a positive pulse. This loads the address high byte.
H. Program Page
1. Set BS1 = “0”
2. Give WR a negative pulse. This starts programming of the entire page of data. RDY/BSY
3. Wait until RDY/BSY goes high. (See
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 signals are
Figure 136. Addressing the Flash which is Organized in Pages
Note:
goes low.
reset.
PROGRAM MEMORY
1. PCPAGE and PCWORD are listed in
PROGRAM
COUNTER
PAGE
PAGE ADDRESS
WITHIN THE FLASH
PCMSB
PCPAGE
PAGEMSB
PCWORD
Figure 137
WORD ADDRESS
WITHIN A PAGE
Table 124 on page
INSTRUCTION WORD
for signal waveforms)
PAGE
292.
PCWORD[PAGEMSB:0]:
00
01
02
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2467S–AVR–07/09