Rainbow-electronics AT90LS2343 Uživatelský manuál stáhnout pdf (Strana 41)

AT90S/LS2323/2343

1004D–09/01

Note: a = address high bits

b = address low bits

i = data in

o = data out

x = don’t care

1 = Lock Bit1

2 = Lock Bit2

F = FSTRT Fuse

R = RCEN Fuse

S = SPIEN Fuse

Read Fuse

and Lock Bits

(AT90S/

LS2323)

PB0

PB1

PB2

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_0111_1100_00

1_2Sxx_xxRx_xx

Reading 1, 2, S, R = “0” means

the Fuse/Lock bit is

programmed.

Read Fuse

and Lock Bits

(AT90S/

LS2343)

PB0

PB1

PB2

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_0111_1100_00

1_2Sxx_xxRx_xx

Reading 1, 2, S, R = “0” means

the Fuse/Lock bit is

programmed.

Read

Signature

Bytes

PB0

PB1

PB2

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

o_oooo_ooox_xx

Repeat Instr.2 - Instr.4 for each

signature byte address.

Table 16. High-voltage Serial Programming Instruction Set (Continued)

Instruction

Instruction Format

Operation RemarksInstr.1 Instr.2 Instr.3 Instr.4

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 63 64

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