ATMEGA165P Datasheet, PDF (298/365 Pages) ATMEL Corporation – 8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash

Table 25-16. JTAG Programming Instruction (Continued)
Set (Continued) a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data in, x
Instruction
TDI Sequence
TDO Sequence
Notes
5c. Load Address Low Byte
0000011_bbbbbbbb
xxxxxxx_xxxxxxxx
5d. Read Data Byte
0110011_bbbbbbbb
0110010_00000000
0110011_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
6a. Enter Fuse Write
6b. Load Data Low Byte⁽⁶⁾
0100011_01000000
xxxxxxx_xxxxxxxx
0010011_iiiiiiii
xxxxxxx_xxxxxxxx
(3)
6c. Write Fuse Extended Byte
0111011_00000000
xxxxxxx_xxxxxxxx
0111001_00000000
xxxxxxx_xxxxxxxx
(1)
0111011_00000000
xxxxxxx_xxxxxxxx
0111011_00000000
xxxxxxx_xxxxxxxx
6d. Poll for Fuse Write Complete
6e. Load Data Low Byte⁽⁷⁾
0110111_00000000
xxxxxox_xxxxxxxx
(2)
0010011_iiiiiiii
xxxxxxx_xxxxxxxx
(3)
6f. Write Fuse High Byte
0110111_00000000
xxxxxxx_xxxxxxxx
0110101_00000000
xxxxxxx_xxxxxxxx
(1)
0110111_00000000
xxxxxxx_xxxxxxxx
0110111_00000000
xxxxxxx_xxxxxxxx
6g. Poll for Fuse Write Complete
6h. Load Data Low Byte⁽⁷⁾
0110111_00000000
xxxxxox_xxxxxxxx
(2)
0010011_iiiiiiii
xxxxxxx_xxxxxxxx
(3)
6i. Write Fuse Low Byte
0110011_00000000
xxxxxxx_xxxxxxxx
0110001_00000000
xxxxxxx_xxxxxxxx
(1)
0110011_00000000
xxxxxxx_xxxxxxxx
0110011_00000000
xxxxxxx_xxxxxxxx
6j. Poll for Fuse Write Complete
0110011_00000000
xxxxxox_xxxxxxxx
(2)
7a. Enter Lock Bit Write
7b. Load Data Byte⁽⁹⁾
0100011_00100000
xxxxxxx_xxxxxxxx
0010011_11iiiiii
xxxxxxx_xxxxxxxx
(4)
7c. Write Lock Bits
0110011_00000000
xxxxxxx_xxxxxxxx
0110001_00000000
xxxxxxx_xxxxxxxx
(1)
0110011_00000000
xxxxxxx_xxxxxxxx
0110011_00000000
xxxxxxx_xxxxxxxx
7d. Poll for Lock Bit Write complete
0110011_00000000
xxxxxox_xxxxxxxx
(2)
8a. Enter Fuse/Lock Bit Read
0100011_00000100
xxxxxxx_xxxxxxxx
8b. Read Extended Fuse Byte⁽⁶⁾
0111010_00000000
0111011_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
8c. Read Fuse High Byte⁽⁷⁾
0111110_00000000
0111111_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
8d. Read Fuse Low Byte⁽⁸⁾
0110010_00000000
0110011_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
8e. Read Lock Bits⁽⁹⁾
0110110_00000000
0110111_00000000
xxxxxxx_xxxxxxxx
(5)
xxxxxxx_xxoooooo
298 ATmega165P
8018A–AVR–03/06