M50FLW040AK1 STMicroelectronics, M50FLW040AK1 Datasheet - Page 48
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M50FLW040AK1
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
Datasheet
1.M50FLW040AK1.pdf
(52 pages)
- Current page: 48 of 52
- Download datasheet (454Kb)
M50FLW040A, M50FLW040B
Figure 26. Chip Erase Flowchart and Pseudo Code (A/A Mux Interface Only)
Note: 1. If an error is found, the Status Register must be cleared before further Program/Erase Controller operations.
48/52
SR4, SR5 = 0
Read Status
Write 80h
Write 10h
Register
SR7 = 1
SR3 = 0
SR5 = 0
Start
End
YES
YES
YES
YES
NO
NO
NO
NO
Sequence Error (1)
Erase Error (1)
V PP Invalid
Command
Error (1)
Chip Erase command:
– write 80h
– write 10h
do:
– read Status Register
while SR7 = 0
If SR3 = 1, V PP invalid error:
– error handler
If SR4, SR5 = 1, Command sequence error:
– error handler
If SR5 = 1, Erase error:
– error handler
(memory enters read Status Register after
the Chip Erase command)
AI08428B
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