參數(shù)資料
型號(hào): 7782
廠商: 意法半導(dǎo)體
英文描述: 32 Mbit (2Mb x 16, Dual Bank, Burst ) 1.8V Supply Flash Memory
中文描述: 32兆位(含2Mb × 16,雙行,突發(fā))1.8V電源快閃記憶體
文件頁(yè)數(shù): 57/63頁(yè)
文件大?。?/td> 435K
代理商: 7782
57/63
M58CR032C, M58CR032D
Figure 22. Block Erase Flowchart and Pseudo Code
Note: If an error is found, the Status Register must be cleared before further Program/Erase operations.
Write 20h
AI90017b
Start
Write Block
Address & D0h
Read Status
Register
YES
NO
b7 = 1
YES
NO
b3 = 0
YES
b4, b5 = 1
VPP Invalid
Error (1)
Command
Sequence Error (1)
NO
NO
b5 = 0
Erase Error (1)
End
YES
NO
b1 = 0
Erase to Protected
Block Error (1)
YES
erase_command ( blockToErase ) {
writeToFlash (any_address, 0x20) ;
writeToFlash (blockToErase, 0xD0) ;
/* only A12-A20 are significannt */
/* Memory enters read status state after
the Erase Command */
} while (status_register.b7== 0) ;
do {
status_register=readFlash (any_address) ;
/* E or G must be toggled*/
if (status_register.b3==1) /*VPP invalid error */
error_handler ( ) ;
if ( (status_register.b4==1) && (status_register.b5==1) )
/* command sequence error */
error_handler ( ) ;
if (status_register.b1==1) /*program to protect block error */
error_handler ( ) ;
if ( (status_register.b5==1) )
/* erase error */
error_handler ( ) ;
}
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