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M50FLW080A датащи(PDF) 61 Page - STMicroelectronics

номер детали M50FLW080A
подробное описание детали  8 Mbit (13 x 64KByte Blocks 3 x 16 x 4KByte Sectors), 3V Supply Firmware Hub / Low Pin Count Flash Memory
PDF  64 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M50FLW080A датащи(HTML) 61 Page - STMicroelectronics

Back Button M50FLW080A Datasheet HTML 56Page - STMicroelectronics M50FLW080A Datasheet HTML 57Page - STMicroelectronics M50FLW080A Datasheet HTML 58Page - STMicroelectronics M50FLW080A Datasheet HTML 59Page - STMicroelectronics M50FLW080A Datasheet HTML 60Page - STMicroelectronics M50FLW080A Datasheet HTML 61Page - STMicroelectronics M50FLW080A Datasheet HTML 62Page - STMicroelectronics M50FLW080A Datasheet HTML 63Page - STMicroelectronics M50FLW080A Datasheet HTML 64Page - STMicroelectronics  
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M50FLW080A, M50FLW080B
Flowcharts and pseudo codes
61/64
Figure 26.
Sector/Block Erase flowchart and pseudo code
1.
If the Block Erase command is used on a block that is split into 4KByte sectors, each of the 16 sectors of
the block should be unlocked before performing the erase operation.
2.
If an error is found, the Status Register must be cleared before further Program/Erase Controller
operations.
Write 20h/32h
AI09094
Start
Write Block/Sector
Address and D0h
Read Status
Register
YES
NO
SR7 = 1
YES
NO
SR3 = 0
NO
SR4, SR5 = 0
VPP Invalid
Error (1)
Command
Sequence Error (1)
Block/Sector Erase command:
– Write 20h/32h
– Write Block/Sector Address and D0h
(memory enters read Status Register after
the Block/Sector Erase 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,
– Enter the "VPP invalid" error handler
If SR4, SR5 = 1,
– Enter the "Command sequence"error handler
YES
NO
SR5 = 0
Erase Error (1)
YES
NO
Suspend
Suspend
Loop
If SR5 = 1,
– Enter the "Erase Error" error handler
End
YES
NO
SR1 = 0
Erase to Protected
Block/Sector Error (1)
If SR1 = 1,
– Enter the "Erase to protected Block/Sector"
error handler
YES
FWH/LPC
Interface
Only



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