S25FL128SAGMFI011 Spansion, S25FL128SAGMFI011 Datasheet - Page 115

• Manufacturer Part Number: S25FL128SAGMFI011
• Description: Flash 128Mb 3V 133MHz Serial NOR Flash
• Manufacturer: Spansion

Specifications of S25FL128SAGMFI011

• Rohs: yes

10.6
July 12, 2012 S25FL128S_256S_00_05
SCLK
10.6.1
CS#
SO
SI
Erase Flash Array Commands
7
Parameter 4-kB Sector Erase (P4E 20h or 4P4E 21h)
The P4E command is implemented only in FL128S and FL256S. The P4E command is ignored when the
device is configured with the 256-kB sector option.
The Parameter 4-kB Sector Erase (P4E) command sets all the bits of a 4-kbyte parameter sector to 1 (all
bytes are FFh). Before the P4E command can be accepted by the device, a Write Enable (WREN) command
must be issued and decoded by the device, which sets the Write Enable Latch (WEL) in the Status Register
to enable any write operations.
The instruction
 20h [ExtAdd=0] is followed by a 3-byte address (A23-A0), or
 20h [ExtAdd=1] is followed by a 4-byte address (A31-A0), or
 21h is followed by a 4-byte address (A31-A0)
CS# must be driven into the logic high state after the twenty-fourth or thirty-second bit of the address has
been latched in on SI. This will initiate the beginning of internal erase cycle, which involves the pre-
programming and erase of the chosen sector of the flash memory array. If CS# is not driven high after the last
bit of address, the sector erase operation will not be executed.
As soon as CS# is driven high, the internal erase cycle will be initiated. With the internal erase cycle in
progress, the user can read the value of the Write-In Progress (WIP) bit to determine when the operation has
been completed. The WIP bit will indicate a 1. when the erase cycle is in progress and a 0 when the erase
cycle has been completed.
A P4E command applied to a sector that has been write protected through the Block Protection bits or ASP,
will not be executed and will set the E_ERR status. A P4E command applied to a sector that is larger than
4 kbytes will not be executed and will not set the E_ERR status.
6
Program Suspend Instruction
5
SCK
CS S #
SO
SI
4
Figure 10.59 Program Suspend Command Sequence
3
D a t a
2
Figure 10.60 Program Resume Command Sequence
MSB
7
0
1
S25FL128S and S25FL256S
6
1 1
S h e e t
5
0
2
Instruction (8Ah)
High Impedance
4
3
3
4
2
7
5
1
6
6
0
Read Status
7
Resume Programming
0
tPSL
tPSL
7
0
Mode Command
Prog. Suspend
7
6
5
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