Rainbow Electronics AT45DB041D - Manual (Page 44)

44
3595R–DFLASH–11/2012
AT45DB041D
24.9 Read Security Register (Opcode 77H)
24.10 Status Register Read (Opcode D7H)
24.11 Manufacturer and Device Read (Opcode 9FH)
SCK
CS
SI
SO
MSB MSB
2 3 1 0
0 1 1 1 0 1 1 1
6 7 5 4 10 11 9 8 12 37 38 33 36 35 34 31 32 29 30 39 40
OPCODE
X X X X X X X X X
MSB MSB
D D D D D D D D D
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB
2 3 1 0
1 1 0 1 0 1 1 1
6 7 5 4 10 11 9 8 12 21 22 17 20 19 18 15 16 13 14 23 24
OPCODE
MSB MSB
D D D D D D D D D D
MSB
D D D D D D D D
STATUS REGISTER DATA STATUS REGISTER DATA
HIGH-IMPEDANCE
SCK
CS
SI
SO
6 0
9FH
8 7 38
OPCODE
1FH DEVICE ID BYTE 1 DEVICE ID BYTE 2 00H
HIGH-IMPEDANCE
14 16 15 22 24 23 30 32 31
Note: Each transition shown for SI and SO represents one byte (8 bits)