M50FLW040AK1 STMicroelectronics, M50FLW040AK1 Datasheet - Page 50

• Manufacturer Part Number: M50FLW040AK1
• Description: 4 Mbit (5 x 64KByte Blocks + 3 x 16 x 4KByte Sectors) 3V Supply Firmware Hub / Low Pin Count Flash Memory
• Manufacturer: STMicroelectronics

M50FLW040A, M50FLW040B
Figure 28. Erase Suspend and Resume Flowchart and Pseudo Code
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another block/sector
Erase Continues
Read data from
Read Status
Write D0h
Write B0h
Write 70h
Program
Register
SR7 = 1
SR6 = 1
Start
or
YES
YES
NO
NO
Erase Complete
Read Data
Write FFh
Program/Erase Suspend command:
– write B0h
– write 70h
do:
– read Status Register
while SR7 = 0
If SR6 = 0, Erase completed
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