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ATtiny167-ESSZ датащи(PDF) 235 Page - ATMEL Corporation

номер детали ATtiny167-ESSZ
подробное описание детали  8-bit Microcontroller with 8K/16K Bytes In-System Programmable Flash and LIN Controller
PDF  282 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny167-ESSZ датащи(HTML) 235 Page - ATMEL Corporation

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235
7728D–AVR–07/09
ATtiny87/ATtiny167
Figure 21-4. Programming the EEPROM Waveforms
21.7.6
Reading the Flash
The algorithm for reading the Flash memory is as follows (refer to “Programming the Flash” on
page 232 for details on Command and Address loading):
1.
A: Load Command “0000 0010
b”.
2.
G: Load Address High Byte (0x00 - 0xFF).
3.
B: Load Address Low Byte (0x00 - 0xFF).
4.
Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.
5.
Set BS1 to “1”. The Flash word high byte can now be read at DATA.
6.
Set OE to “1”.
21.7.7
Reading the EEPROM
The algorithm for reading the EEPROM memory is as follows (refer to “Programming the
Flash” on page 232 for details on Command and Address loading):
1.
A: Load Command “0000 0011
b”.
2.
G: Load Address High Byte (0x00 - 0xFF).
3.
B: Load Address Low Byte (0x00 - 0xFF).
4.
Set OE to “0”, and BS1 to “0”. The EEPROM Data byte can now be read at DATA.
5.
Set OE to “1”.
21.7.8
Programming the Fuse Low Bits
The algorithm for programming the Fuse Low bits is as follows (refer to “Programming the
Flash” on page 232 for details on Command and Data loading):
1.
A: Load Command “0100 0000
b”.
2.
C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3.
Give WR a negative pulse and wait for RDY/BSY to go high.
0x11
ADDR. HIGH
ADDR. LOW
DATA
ADDR. LOW
DATA
XX
RDY/BSY
WR
OE
RESET +12V
DATA
XA1 / BS2
XA0
PAGEL / BS1
XTAL1
XX
AG
B
C
E
B
C
E
L
K



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