S25FL032P0XMFI011 datasheet(43/69 Pages) SPANSION

Part #	S25FL032P0XMFI011

Description	32-Mbit CMOS 3.0 Volt Flash Memory with 104-MHz SPI (Serial Peripheral Interface) Multi I/O Bus

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January 29, 2013 S25FL032P_00_09

S25FL032P

43

Data

Sheet

9.16

Parameter Sector Erase (P4E, P8E)

The Parameter Sector Erase (P4E, P8E) command sets all bits at all addresses within a specified sector to a

logic 1 (FFh). A WREN command is required prior to writing the Parameter Sector Erase commands.

The host system must drive CS# low, and then write the P4E or P8E command, plus three address bytes on

SI. Any address within the sector (see Table 8.1 on page 20 and Table 8.2 on page 21) is a valid address for

the P4E or P8E command. CS# must be driven low for the entire duration of the P4E/P8E sequence. The

command sequence is shown in Figure 9.19 and Table 9.1 on page 23.

The host system must drive CS# high after the device has latched the 24th bit of the P4E/P8E address,

otherwise the device does not execute the command. The parameter sector erase operation begins as soon

as CS# is driven high. The device internally controls the timing of the operation, which requires a period of

tSE. The Status Register may be read to check the value of the Write In Progress (WIP) bit while the

parameter sector erase operation is in progress. The WIP bit is 1 during the P4E/P8E operation, and is 0

when the operation is completed. The device internally resets the Write Enable Latch to 0 before the

operation completes (the exact timing is not specified).

A Parameter Sector Erase (P4E, P8E) instruction applied to a sector that has been Write Protected through

the Block Protect Bits will not be executed.

The Parameter Sector Erase Command (P8E) erases two of the 4 KB Sectors in selected address space.

The Parameter Sector Erase Command (P8E) erases two sequential 4 KB Parameter Sectors in the selected

address space. The address LSB is disregarded so that two sequential 4 KB Parameter Sectors are erased.

The 24 Bit Address is any location within the first Sector to be erased (n), and the next sequential 4 KB

Parameter Sector will also be erased (n+1). The 4 KB parameter Sector will only be erased properly if n or

n+1 is a valid 4 KB parameter Sector. i.e. If n is not a valid 4K parameter Sector, then it will not be erased. If

n+1 is not a valid 4 KB parameter Sector, then it will not be erased.

Figure 9.19 Parameter Sector Erase (P4E, P8E) Instruction Sequence

1

3

0

1

29

8

7

6

5

4

0

31

30

29

28

Instruction

24 Bit Address

23

21

22

1

3

20

SCK

SI

MSB

CS#

20h or 40h

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S25FL032P0XMFI011 Datasheet(PDF) 43 Page - SPANSION

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