Fujitsu MB91260B Series Hardware Manual page 443

CHAPTER 17 FLASH MEMORY
Figure 17.6-1 Sector Protect Algorithms Using Enable Sector Protect and Verify Sector Protect
NO
428
PLSCNT=50 ?
YES
Cancel MD0=V
ID
Write reset command
Fail
Start
Sector address setup
A17 to A13
PLSCNT=1
MD2=MD0=V
MD1=HA1=CEX=WEX="L"
OEX=RSTX="H"
Apply WEX pulse
Timeout 100 µs
WEX=MD2="H"
CEX=OEX="L"
(Still MD0=V
Read the sector address SA
(Address=SA, A1="L",
A2="H", A7="L")
NO
Data=01
H
YES
Protect other
sectors?
NO
Cancel MD0=V
Write reset command
Sector protect end
,
ID
)
ID
?
YES
ID