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M58LR128HT85ZB5F bảng dữ liệu(PDF) 100 Page - STMicroelectronics

tên linh kiện M58LR128HT85ZB5F
Giải thích chi tiết về linh kiện  128 Mbit (8 Mb ×16, Multiple Bank, Multilevel interface, Burst) 1.8 V supply Flash memories
PDF  112 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58LR128HT85ZB5F bảng dữ liệu(HTML) 100 Page - STMicroelectronics

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Flowcharts and pseudocodes
M58LR128HT, M58LR128HB
100/112
Figure 26.
Protection Register Program flowchart and pseudocode
1.
Status check of SR1 (Protected Block), SR3 (VPP Invalid) and SR4 (Program Error) can be made after each program
operation or after a sequence.
2.
If an error is found, the Status Register must be cleared before further Program/Erase Controller operations.
3.
Any address within the bank can equally be used.
Write C0h (3)
AI06177b
Start
Write Address
& Data
Read Status
Register (3)
YES
NO
SR7 = 1
YES
NO
SR3 = 0
NO
SR4 = 0
VPP Invalid
Error (1, 2)
Program
Error (1, 2)
protection_register_program_command (addressToProgram, dataToProgram) {:
writeToFlash (addressToProgram, 0xC0) ;
/*see note (3) */
do {
status_register=readFlash (addressToProgram) ;
/* see note (3) */
/* E or G must be toggled*/
} while (status_register.SR7== 0) ;
if (status_register.SR3==1) /*VPP invalid error */
error_handler ( ) ;
YES
End
YES
NO
SR1 = 0
Program to Protected
Block Error (1, 2)
writeToFlash (addressToProgram, dataToProgram) ;
/*Memory enters read status state after
the Program Command*/
if (status_register.SR4==1) /*program error */
error_handler ( ) ;
if (status_register.SR1==1) /*program to protect block error */
error_handler ( ) ;
}



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