57
ATtiny15L
1187E–AVR–06/02
Table 25. High-voltage Serial Programming Instruction Set for ATtiny15L
(1)
Instruction
Instruction Format
Operation RemarksInstr.1 Instr.2 Instr.3 Instr.4
Chip Erase
PB0
PB1
PB2
0_1000_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
Wait after Instr.3 until PB2
goes high for the Chip Erase
cycle to finish.
Write Flash
High and Low
Address
PB0
PB1
PB2
0_0001_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_000a_00
0_0001_1100_00
x_xxxx_xxxx_xx
0_bbbb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
Repeat Instr.2 for a new 256
byte page. Repeat Instr.3 for
each new address.
Write Flash
Low Byte
PB0
PB1
PB2
0_ iiii_iiii_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
0_0000_0000_00
Wait after Instr.3 until PB2
goes high. Repeat Instr.1,
Instr. 2 and Instr.3 for each
new address.
Write Flash
High Byte
PB0
PB1
PB2
0_ iiii_iiii_00
0_0011_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1100_00
0_0000_0000_00
Wait after Instr.3 until PB2
goes high. Repeat Instr.1,
Instr. 2 and Instr.3 for each
new address.
Read Flash
High and Low
Address
PB0
PB1
PB2
0_0000_0010_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_000a_00
0_0001_1100_00
x_xxxx_xxxx_xx
0_bbbb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
Repeat Instr.2 and Instr.3 for
each new address.
Read Flash
Low Byte
PB0
PB1
PB2
0_0000_0000_00
0_0110_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
o_oooo_ooox_xx
Repeat Instr.1 and Instr.2 for
each new address.
Read Flash
High Byte
PB0
PB1
PB2
0_0000_0000_00
0_0111_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
o_oooo_ooox_xx
Repeat Instr.1 and Instr.2 for
each new address.
Write
EEPROM
Low Address
PB0
PB1
PB2
0_0001_0001_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_00bb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
Repeat Instr.2 for each new
address.
Write
EEPROM
Byte
PB0
PB1
PB2
0_ iiii_iiii_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
0_0000_0000_00
Wait after Instr.3 until PB2
goes high
Read
EEPROM
Low Address
PB0
PB1
PB2
0_0000_0011_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_00bb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
Repeat Instr.2 for each new
address.
Read
EEPROM
Byte
PB0
PB1
PB2
0_0000_0000_00
0_0110_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
o_oooo_ooox_xx
Repeat Instr.2 for each new
address
Write Fuse
Bits
PB0
PB1
PB2
0_0100_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_8765_1143_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Wait after Instr.4 until PB2
goes high. Write 8 - 3 = “0” to
program the Fuse bit.
Write Lock
Bits
PB0
PB1
PB2
0_0010_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0
21
0_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
0_0000_0000_00
Wait after Instr.4 until PB2
goes high. Write
2
,
1
= “0” to
program the Lock bit.
Read Fuse
Bits
PB0
PB1
PB2
0_0000_0100_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
8_765x_x43x_xx
Reading 8 - 3 = “0” means the
Fuse bit is programmed.
(18 Seiten)
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