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ATtiny48 Datasheet(PDF) 192 Page - ATMEL Corporation

Part # ATtiny48
Description  8-bit Microcontroller with 4/8K Bytes In-System Programmable Flash
PDF  266 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny48 Datasheet(HTML) 192 Page - ATMEL Corporation

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192
8008C–AVR–03/09
ATtiny48/88
3.
Give CLKI a positive pulse. This loads the command, and the internal write signals are
reset.
Figure 20-2. Addressing the Flash Which is Organized in Pages
(1)
Note:
1. PCPAGE and PCWORD are listed in Table 20-7 on page 187.
Figure 20-3. Programming the Flash Waveforms
(1)
Note:
1. “XX” is don’t care. The letters refer to the programming description above.
20.7.5
Programming the EEPROM
The EEPROM is organized in pages, see Table 20-8 on page 187. 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
PROGRAM MEMORY
WORD ADDRESS
WITHIN A PAGE
PAGE ADDRESS
WITHIN THE FLASH
INSTRUCTION WORD
PAGE
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
PAGE
PCWORD
PCPAGE
PCMSB
PAGEMSB
PROGRAM
COUNTER
RDY/BSY
WR
OE
RESET +12V
PAGEL
BS2
0x10
ADDR. LOW
ADDR. HIGH
DATA
DATA LOW
DATA HIGH
ADDR. LOW
DATA LOW
DATA HIGH
XA1
XA0
BS1
CLKI
XX
XX
XX
AB
CD
E
B
C
D
E
G
H
F



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