M50FLW040B ST Microelectronics, M50FLW040B Datasheet - Page 47

• Manufacturer Part Number: M50FLW040B
• Description: 4 Mbit 3V Supply Firmware Hub / Low Pin Count Flash Memory
• Manufacturer: ST Microelectronics

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Figure 25. Program Suspend and Resume Flowchart and Pseudo Code
Note: 1. If an error is found, the Status Register must be cleared before further Program/Erase operations.
2. Any address within the bank can equally be used.
Program Continues
another address
Read data from
Read Status
Write a read
Command
Write D0h
Write B0h
Write 70h
Register
SR7 = 1
SR2 = 1
Start
YES
YES
NO
NO
Program Complete
Read Data
Write FFh
Program/Erase Suspend command:
– write B0h
– write 70h
do:
– read Status Register
while SR7 = 0
If SR2 = 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).
M50FLW040A, M50FLW040B
AI08426B
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