M50FW040 データシートの表示（PDF） - STMicroelectronics

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M50FW040

4 Mbit (512Kb x8, Uniform Block) 3V Supply Firmware Hub Flash Memory

STMicroelectronics 

Figure 20. Program Suspend & Resume Flowchart and Pseudo Code

M50FW040

Start

Write B0h

Write 70h

Read Status

Register

NO

b7 = 1

YES

NO

b2 = 1

YES

Write a read

Command

Program Complete

Read data from

another address

Write D0h

Write FFh

Program Continues

Read Data

Program/Erase Suspend command:

– write B0h

– write 70h

do:

– read Status Register

while b7 = 1

If b2 = 0 Program completed

Program/Erase Resume command:

– write D0h to resume the program

– if the Program operation completed

then this is not necessary.

The device returns to Read as

normal (as if the Program/Erase

suspend was not issued).

AI03408

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