N25Q128 Numonyx, N25Q128 Datasheet - Page 140

• Manufacturer Part Number: N25Q128
• Description: 128-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase On Boot Sectors, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

9.3.9
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Figure 79. Subsector Erase instruction sequence QIO-SPI
Sector Erase (SE)
The Sector Erase (SE) instruction sets to '1' (FFh) all bits inside the chosen sector. Before it
can be accepted, a Write Enable (WREN) instruction must previously have been executed.
Apart form the parallelizing of the instruction code and the address on the four pins DQ0,
DQ1, DQ2 and DQ3, the instruction functionality is exactly the same as the Sector Erase
(SE) instruction of the Extended SPI protocol, please refer to
(SE)
Figure 80. Sector Erase instruction sequence QIO-SPI
for further details.
DQ0
DQ2
DQ1
DQ3
DQ0
DQ2
C
DQ1
DQ3
S
S
C
Instruction
Instruction
0
0
1
1
2
20 16 12 8
21 17 13 9
22 18 14 10
23 19 15 11 7
2
21 17 13 9
20 16 12 8
22 18 14 10
23 19 15 11 7
24-Bit Address
3
24-Bit Address
3
Quad_Subsector_Erase
4
4
5
5
6
6
4
5
6
7
Quad_Sector_Erase
6
4
5
2
0
1
3
7
8
2
0
1
3
9
8
Section 9.1.18: Sector Erase
9