ATTINY26L8SU SL383 Atmel, ATTINY26L8SU SL383 Datasheet - Page 118

• Manufacturer Part Number: ATTINY26L8SU SL383
• Description: MCU 8-Bit ATtiny AVR RISC 2KB Flash 3.3V/5V 20-Pin SOIC T/R
• Manufacturer: Atmel

Reading the Flash
Reading the EEPROM
Programming the Fuse Low
Bits
118
ATtiny26(L)
Figure 61. Programming the EEPROM Waveforms
The algorithm for reading the Flash memory is as follows (refer to “Programming the
Flash” on page 115 for details on Command and Address loading):
1. A: Load Command “0000 0010”.
2. F: Load Address High Byte ($00 - $03).
3. B: Load Address Low Byte ($00 - $FF).
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”.
The algorithm for reading the EEPROM memory is as follows (refer to “Programming the
Flash” on page 115 for details on Command and Address loading):
1. A: Load Command “0000 0011”.
2. B: Load Address Low Byte ($00 - $FF).
3. Set OE to “0”, and BS1 to “0”. The EEPROM Data byte can now be read at
4. Set OE to “1”.
The algorithm for programming the Fuse Low bits is as follows (refer to “Programming
the Flash” on page 115 for details on Command and Data loading):
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Set BS1 and BS2 to “0”.
4. Give WR a negative pulse and wait for RDY/BSY to go high.
RESET +12V
PAGEL/BS1
DATA.
RDY/BSY
XA1/BS2
XTAL1
DATA
XA0
WR
OE
$11
A
ADDR. LOW
B
DATA
C
ADDR. LOW
B
J
DATA
C
XX
K
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