193
9140CINDCO02/10
ATA8741
Write
EEPROM
Byte
SDI
SII
SDO
0_bbbb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
0_aaaa_aaaa_00
0_0001_1100_00
x_xxxx_xxxx_xx
0_eeee_eeee_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1101_00
x_xxxx_xxxx_xx
Repeat Instr. 1 - 6 for each new
address. Wait after Instr. 6 until
SDO goes high. See Note 3.
SDI
SII
SDO
0_0000_0000_00
0_0110_0100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_xxxx_xx
Instr. 5-6
Load Read
EEPROM
Command
SDI
SII
SDO
0_0000_0011_00
0_0100_1100_00
x_xxxx_xxxx_xx
Enter EEPROM Read mode.
Read
EEPROM
Byte
SDI
SII
SDO
0_bbbb_bbbb_00
0_0000_1100_00
x_xxxx_xxxx_xx
0_aaaa_aaaa_00
0_0001_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
q_qqqq_qqq0_00
Repeat Instr. 1, 3 - 4 for each
new address. Repeat Instr. 2 for
a new 256 byte page.
Write Fuse
Low Bits
SDI
SII
SDO
0_0100_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_A987_6543_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 SDO
goes high. Write A - 3 = 0 to
program the Fuse bit.
Write Fuse
High Bits
SDI
SII
SDO
0_0100_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_IHGF_EDCB_00
0_0010_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
x_xxxx_xxxx_xx
Wait after Instr. 4 until SDO
goes high. Write F - B = 0 to
program the Fuse bit.
Write Fuse
Extended Bits
SDI
SII
SDO
0_0100_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_000J_00
0_0010_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_0110_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1110_00
x_xxxx_xxxx_xx
Wait after Instr. 4 until SDO
goes high. Write J = 0 to
program the Fuse bit.
Write Lock
Bits
SDI
SII
SDO
0_0010_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0021_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 SDO
goes high. Write 2 - 1 = 0 to
program the Lock Bit.
Read Fuse
Low Bits
SDI
SII
SDO
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
A_9876_543x_xx
Reading A - 3 = 0 means the
Fuse bit is programmed.
Read Fuse
High Bits
SDI
SII
SDO
0_0000_0100_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1010_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1100_00
I_HGFE_DCBx_xx
Reading F - B = 0 means the
Fuse bit is programmed.
Read Fuse
Extended Bits
SDI
SII
SDO
0_0000_0100_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1010_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1110_00
x_xxxx_xxJx_xx
Reading J = 0 means the
Fuse bit is programmed.
Read Lock
Bits
SDI
SII
SDO
0_0000_0100_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0110_1100_00
x_xxxx_x21x_xx
Reading 2, 1 = 0 means the
Lock bit is programmed.
Read
Signature
Bytes
SDI
SII
SDO
0_0000_1000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_00bb_00
0_0000_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
q_qqqq_qqqx_xx
Repeats Instr 2 4 for each
signature byte address.
Read
Calibration
Byte
SDI
SII
SDO
0_0000_1000_00
0_0100_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0000_1100_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1000_00
x_xxxx_xxxx_xx
0_0000_0000_00
0_0111_1100_00
p_pppp_pppx_xx
Load No
Operation
Command
SDI
SII
SDO
0_0000_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
Table 28-15. High-voltage Serial Programming Instruction Set for ATtiny24/44/84 (Continued)
Instruction
Instruction Format
Operation Remarks
Instr.1/5
Instr.2/6
Instr.3/7
Instr.4
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