S25FL128R Meet Spansion Inc., S25FL128R Datasheet - Page 28

• Manufacturer Part Number: S25FL128R
• Description: 128 Megabit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Bus
• Manufacturer: Meet Spansion Inc.

28
SCK
SO
CS#
SI
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Mode 3
Mode 0
Hi-Z
Status Register Bit
Status Register Bit
Don’t Care
Don’t Care
SRWD
SRWD
WEL
WEL
BP2
BP1
BP0
WIP
BP3
BP2
BP1
BP0
WIP
0
0
1
Figure 11.10 Read Status Register (RDSR) Command Sequence
Table 11.3 S25FL128R Status Register (Uniform 256 KB sector)
Table 11.4 S25FL128R Status Register (Uniform 64 KB sector)
Command
2
D a t a
3
4
Status Register Write
Status Register Write
Write Enable Latch
Write Enable Latch
5
Write in Progress
Write in Progress
S h e e t
Block Protect
Block Protect
Bit Function
Bit Function
6
Disable
Disable
—
—
—
7
S25FL128R
MSB
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7
8
Status Register Out
( A d v a n c e
9
10
11
1 = Protects when WP#/ACC is low
0 = No protection, even when WP#/ACC is low
—
Not used
000–111 = Protects upper half of address range in 7 sizes.
1 = Device accepts Write Status Register, program, or erase commands
0 = Ignores Write Status Register, program, or erase commands
1 = Device Busy. A Write Status Register, program, or erase operation is
in progress
0 = Ready. Device is in standby mode and can accept commands.
1 = Protects when WP#/ACC is low
0 = No protection, even when WP#/ACC is low
—
0000–1111= Protects upper half of address range in 8 sizes.
1 = Device accepts Write Status Register, program, or erase commands
0 = Ignores Write Status Register, program, or erase commands
1 = Device Busy. A Write Status Register, program, or erase operation is
in progress
0 = Ready. Device is in standby mode and can accept commands.
12
13
14
I n f o r m a t i o n )
15
MSB
S25FL128R_00_02 December 1, 2009
Status Register Out
Description
Description