AT45DQ161 Datasheet, PDF (69/81 Pages) List of Unclassifed Manufacturers – 16-Mbit DataFlash (with Extra 512-Kbits), 2.3V or 2.5V Minimum SPI Serial Flash Memory with Dual-I/O and Quad-I/O Support

Figure 25-11.Read Security Register (Opcode 77h)
CS
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11 12
29 30 31 32 33 34 35 36 37 38 39 40
Opcode
Dummy Bits
0 1 1 1 0 1 1 1XXXXXX
MSB
MSB
High-impedance
XXX
Data Byte 1
DDDDDDDDD
MSB
MSB
Figure 25-12. Status Register Read (Opcode D7h)
CS
SCK
SI
SO
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Opcode
11010111
MSB
Status Register Data
Status Register Data
High-impedance
DDDDDDDDDDDDDDDDDD
MSB
MSB
MSB
Figure 25-13. Manufacturer and Device Read (Opcode 9Fh)
CS
SCK
SI
0
678
Opcode
9Fh
14 15 16
22 23 24
30 31 32
38 39 40
46
SO
High-impedance
1Fh
Manufacturer ID
26h
Device ID
Byte 1
00h
Device ID
Byte 2
Note: Each transition
shown for SI and SO represents one byte (8 bits)
01h
EDI
String Length
00h
EDI
Data Byte 1
AT45DQ161 [PRELIMINARY DATASHEET] 69
8790B–DFLASH–10/2013