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M50FW080 Arkusz danych(PDF) 52 Page - STMicroelectronics

Numer części M50FW080
Szczegółowy opis  8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory
PDF  56 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M50FW080 Arkusz danych(HTML) 52 Page - STMicroelectronics

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Flowcharts and pseudo codes
M50FW080
52/55
Figure 21.
Chip Erase flowchart and pseudo code (A/A Mux interface only)
1.
If an error is found, the Status Register must be cleared before further Program/Erase Controller
operations.
Write 80h
AI08428B
Start
Write 10h
Read Status
Register
YES
NO
SR7 = 1
YES
NO
SR3 = 0
NO
SR4, SR5 = 0
VPP Invalid
Error (1)
Command
Sequence Error (1)
Chip Erase command:
– write 80h
– write 10h
(memory enters read Status Register after
the Chip Erase command)
do:
– read Status Register
while SR7 = 0
If SR3 = 1, VPP invalid error:
– error handler
If SR4, SR5 = 1, Command sequence error:
– error handler
YES
NO
SR5 = 0
Erase Error (1)
If SR5 = 1, Erase error:
– error handler
End
YES



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