
357
7682C–AUTO–04/08
AT90CAN32/64/128
6f. Write Fuse High Byte
0110111_00000000
0110101_00000000
0110111_00000000
xxxxxxx_xxxxxxxx
6g. Poll for Fuse Write Complete
0110111_00000000
xxxxxox_xxxxxxxx
6h. Load Data Low Byte
(9)0010011_iiiiiiii
xxxxxxx_xxxxxxxx
6i. Write Fuse Low Byte
0110011_00000000
0110001_00000000
0110011_00000000
xxxxxxx_xxxxxxxx
6j. Poll for Fuse Write Complete
0110011_00000000
xxxxxox_xxxxxxxx
7a. Enter Lock Bit Write
0100011_00100000
xxxxxxx_xxxxxxxx
0010011_11iiiiii
xxxxxxx_xxxxxxxx
7c. Write Lock Bits
0110011_00000000
0110001_00000000
0110011_00000000
xxxxxxx_xxxxxxxx
7d. Poll for Lock Bit Write complete
0110011_00000000
xxxxxox_xxxxxxxx
8a. Enter Fuse/Lock Bit Read
0100011_00000100
xxxxxxx_xxxxxxxx
8b. Read Extended Fuse Byte
(8)0111010_00000000
0111011_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
8c. Read Fuse High Byte
(9)0111110_00000000
0111111_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
8d. Read Fuse Low Byte
(10)0110010_00000000
0110011_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
0110110_00000000
0110111_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_xxoooooo
8f. Read Fuses and Lock Bits
0111010_00000000
0111110_00000000
0110010_00000000
0110110_00000000
0110111_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
Fuse Ext. byte
Fuse High byte
Fuse Low byte
Lock bits
9a. Enter Signature Byte Read
0100011_00001000
xxxxxxx_xxxxxxxx
9b. Load Address Byte
0000011_bbbbbbbb
xxxxxxx_xxxxxxxx
9c. Read Signature Byte
0110010_00000000
0110011_00000000
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
10a. Enter Calibration Byte Read
0100011_00001000
xxxxxxx_xxxxxxxx
Table 25-16. JTAG Programming Instruction (Continued)
Set a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data in, x = don’t care
Instruction
TDI Sequence(1)(2)
TDO Sequence(1)(2)
Notes