Rainbow Electronics ATmega128RFA1 - Manual (Page 487)

487
8266A-MCU Wireless-12/09
ATmega128RFA1
Instruction TDI Sequence TDO Sequence Notes
8a. Enter Fuse/Lock Bit Read 0100011_00000100 xxxxxxx_xxxxxxxx
8b. Read Extended Fuse Byte
0111010_00000000
0111011_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
(6)(5)
8c. Read Fuse High Byte
0111110_00000000
0111111_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
(7)(5)
8d. Read Fuse Low Byte
0110010_00000000
0110011_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
(8)(5)
8e. Read Lock Bits
0110110_00000000
0110111_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_xxoooooo
(9)(5)
8f. Read Fuses and Lock Bits
0111010_00000000
0111110_00000000
0110010_00000000
0110110_00000000
0110111_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_oooooooo (5)
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
10b. Load Address Byte 0000011_bbbbbbbb xxxxxxx_xxxxxxxx
10c. Read Calibration Byte
0110110_00000000
0110111_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
11a. Load No Operation Command
0100011_00000000
0110011_00000000 xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
Notes: 1. This command sequence is not required if the seven MSB’s are correctly set by the previous command sequence
(which is normally the case).
2. Repeat until o = “1”.
3. Set bits to “0” to program the corresponding Fuse, “1” to un-program the Fuse.
4. Set bits to “0” to program the corresponding Lock bit, “1” to leave the Lock bit unchanged.
5. “0” = programmed, “1” = un-programmed.
6. The bit mapping for Fuses Extended byte is listed in Table 31-3 on page 465.
7. The bit mapping for Fuses High byte is listed in Table 31-4 on page 465.
8. The bit mapping for Fuses Low byte is listed in Table 31-5 on page 466
9. The bit mapping for Lock bits byte is listed in Table 31-1 on page 464.
10. Address bits exceeding PCMSB and EEAMSB ( Table 31-7 on page 467 and Table 31-8 on page 467) are don’t care.
11. All TDI and TDO sequences are represented by binary digits.