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MF820M-GNCAV 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC
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MF820M-GNCAV
8/16-bit Data Bus Flash Memory Card
MITSUBISHI ELECTRIC
MF820M-GNCAV Datasheet PDF : 22 Pages
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ERASE ALGORITHM
8 bit mode
MITSUBISHI MEMORY CARD
FLASH MEMORY CARDS
ERASE START
ADDRESS=BLOCK ADDRESS
WRITE ERASE SETUP
COMMAND(20h)
WRITE ERASE COMMAND(D0h)
READ STATUS REGISTER
CHECK ERASE
STATUS BIT
BIT 7=
”
0”
NO
ERASE
SUSPEND?
ERASE SUSPEND
LOOP C
YES
BIT 7 = ” 1”
CHECK Vcc
ERROR BIT
BIT 3=
”
1”
BIT 3=
”
0”
CHECK CONTROL
COMMAND BIT
BIT 4. OR. 5=
”
1”
BIT 4. OR. .5=
”
0”
CHECK ERASE
ERROR BIT
BIT 5.OR.13=
”
1”
BIT 5.OR.13 = ” 0”
WRITE STATUS REGISTER CLEAR COMMAND(50h)
WRITE RESET COMMAND(FFh)
ERASE PASSED
ERASE FAILED
MITSUBISHI
ELECTRIC
12/22
Feb.1999 Rev2.0
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