Owner manual

40
3638K–DFLASH–11/2012
AT45DB021D
Figure 19-8. Read Sector Lockdown Register (Opcode 35H)
Figure 19-9. Read Security Register (Opcode 77H)
Figure 19-10. Status Register Read (Opcode D7H)
SCK
CS
SI
SO
MSB MSB
2310
00110101
675410119812 373833 36353431 3229 30 39 40
OPCODE
XXXX XXXXX
MSB MSB
DDDDDDDDD
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB MSB
2310
01110111
675410119812 373833 36353431 3229 30 39 40
OPCODE
XXXX XXXXX
MSB MSB
DDDDDDDDD
DON'T CARE
DATA BYTE 1
HIGH-IMPEDANCE
SCK
CS
SI
SO
MSB
2310
11010111
675410119812 212217 20191815 1613 14 23 24
OPCODE
MSB MSB
DDDDDD DDDD
MSB
DDDDDDDD
STATUS REGISTER DATA STATUS REGISTER DATA
HIGH-IMPEDANCE