Document Number: 001-98285 Rev. *R
Page 49 of 108
S29GL01GS/S29GL512S
S29GL256S/S29GL128S
Table 5.17
Lock Register State Command Transition
Current State
Command
and
Condition
Read
Software
Reset / ASO
Exit
Status
Register
Read Enter
Status
Register
Clear
Command
Set Exit
Entry
Command
Set Exit
PPB Lock Bit
Set Entry
Password
Word Count
Address
RA
xh
x555h
x555h
xh
xh
xh
Xh
Data
RD
xF0h
x70h
x71h
x90h
x00h
xA0h
x03h
LR
–
LR
READ
LRSR (LR)
LR
LREXT
–
LRPG1
–
LRPG1
–
LRPG1
–
–
–
–
–
–
–
LRPG
–
LRPG
–
LRSR (LRPG)
–
–
–
–
–
LRSR
–
(return)
–
–
–
–
–
–
–
LREXT
–
LREXT
–
–
–
–
READ
–
READ
Table 5.18
CFI State Command Transition
Current State
Command and
Condition
Read
Software Reset / ASO
Exit
Status Register Read
Enter
Status Register Clear
Address
RA
xh
x555h
x555h
Data
RD
xF0h
x70h
x71h
CFI
–
CFI
READ
CFISR (CFI)
CFI
CFISR
–
(return)
–
–
–
Table 5.19
Secure Silicon Sector State Command Transition
Current State
Command and
Condition
Read
Software Reset /
ASO Exit
Status Register
Read Enter
Status Register
Clear
Unlock 1
Address
RA
xh
x555h
x555h
x555h
Data
RD
xF0h
x70h
x71h
xAAh
SSR
–
SSR
READ
SSRSR (SSR)
SSR
SSRUL1
Table 5.20
Secure Silicon Sector Unlock State Command Transition
Current
State
Command
and
Condition
Read
Software
Reset /
ASO Exit
Status
Register
Read
Enter
Unlock 2
Word
Program
Entry
Write to
Buffer
Enter
Comman
d Set Exit
Entry
NOT a valid “Write-to-Buffer-Abort Reset”
Command
Address
RA
xh
x555h
x2AAh
x555h
(SA)xh
x555h
NOT
x555h
xh
NOT
x2AAh
xh
Data
RD
xF0h
x70h
x55h
xA0h
x25h
x90h
xh
NOT
xF0h
xh
NOT x55h
SSRUL1
–
SSRUL1
READ
SSRSR
(SSR)
SSRUL2
–
–
–
–
–
–
–
DQ(1) = 1
SSRPG
SSRPG
SR(3) = 1
SSRUL2
–
SSRUL2
SSR
–
–
SSRPG1
SSR_WB
SSREXT
–
–
–
–
DQ(1) = 1
SSRPG
SSRPG
SR(3) = 1
