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M50FLW040A bảng dữ liệu(PDF) 46 Page - STMicroelectronics

tên linh kiện M50FLW040A
Giải thích chi tiết về linh kiện  4 Mbit (5 x 64KByte Blocks 3 x 16 x 4KByte Sectors) 3V Supply Firmware Hub / Low Pin Count Flash Memory
PDF  52 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M50FLW040A bảng dữ liệu(HTML) 46 Page - STMicroelectronics

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Figure 24. Quadruple Byte Program Flowchart and Pseudo Code (A/A Mux Interface Only)
Note: 1. A Status check of SR3 (VPP invalid) and SR4 (Program Error) can be made after each Program operation by following the correct
command sequence.
2. If an error is found, the Status Register must be cleared before further Program/Erase Controller operations.
3. Address1, Address 2, Address 3 and Address 4 must be consecutive addresses differing only for address bits A0 and A1.
AI08437B
Write Address 4
& Data 4 (3)
Read Status
Register
YES
NO
SR7 = 1
YES
NO
SR3 = 0
NO
SR4 = 0
VPP Invalid
Error (1, 2)
Program
Error (1, 2)
Quadruple Byte Program command:
– write 30h
– write Address 1 & Data 1 (3)
– write Address 2 & Data 2 (3)
– write Address 3 & Data 3 (3)
– write Address 4 & Data 4 (3)
(memory enters read status state after
the Quadruple Byte Program command)
do:
– Read Status Register
– If SR7=0 and a Program/Erase Suspend
command has been executed
– SR7 is set to 1
– Enter suspend program loop
If SR3 = 1, VPP invalid error:
– error handler
If SR4 = 1, Program error:
– error handler
End
YES
Suspend
Suspend
Loop
NO
YES
Write 30h
Start
Write Address 1
& Data 1 (3)
Write Address 2
& Data 2 (3)
Write Address 3
& Data 3 (3)



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