M50FW040(2006) 查看數據表（PDF） - STMicroelectronics

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M50FW040
(Rev.:2006)

4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory

STMicroelectronics 

M50FW040

Flowcharts and pseudo codes

Figure 21. Erase Suspend & Resume flowchart and pseudo code

Start

Write B0h

Write 70h

Read Status

Register

Program/Erase Suspend command:

– write B0h

– write 70h

do:

– read Status Register

NO

b7 = 1

YES

NO

b6 = 1

YES

Read data from

another block

or

Program

Erase Complete

while b7 = 1

If b6 = 0, Erase completed

Write D0h

Erase Continues

Write FFh

Read Data

Program/Erase Resume command:

– write D0h to resume erase

– if the Erase operation completed

then this is not necessary.

The device returns to Read as

normal (as if the Program/Erase

suspend was not issued).

AI03410

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