M50FLW040B 查看數據表（PDF） - STMicroelectronics

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M50FLW040B

4-Mbit (5 × 64 Kbyte blocks + 3 × 16 × 4 Kbyte sectors) 3-V supply Firmware Hub / low-pin count Flash memory

STMicroelectronics 

Flowcharts and pseudo codes

M50FLW040A, M50FLW040B

Figure 27. Erase Suspend and 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

SR7 = 1

YES

NO

SR6 = 1

YES

Read data from

another block/sector

or

Program

Erase Complete

while SR7 = 0

If SR6 = 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).

AI08429B

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