Document Number: 001-98285 Rev. *R
Page 55 of 108
S29GL01GS/S29GL512S
S29GL256S/S29GL128S
7.
Software Interface Reference
7.1
Command Summary
Table 7.1
Command Definitions
Command Sequence
Cycl
es
Bus Cycles (Notes
First
Second
Third
Fourth
Fifth
Sixth
Seventh
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read
1
RA
RD
Reset/ASO Exit (Notes
)
1
XXX
F0
Status Register Read
2
555
70
XXX
RD
Status Register Clear
1
555
71
Word Program
4
555
AA
2AA
55
555
A0
PA
PD
Write to Buffer
6
555
AA
2AA
55
SA
25
SA
WC
WBL
PD
WBL
PD
Program Buffer to Flash
(confirm)
1
SA
29
Write-to-Buffer-Abort Reset
3
555
AA
2AA
55
555
F0
Chip Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Sector Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
SA
30
Erase Suspend/Program
Suspend
Legacy Method
1
XXX
B0
Erase Suspend Enhanced
Method
Erase Resume/Program
Resume
Legacy Method
1
XXX
30
Erase Resume Enhanced
Method
Program Suspend Enhanced
Method
1
XXX
51
Program Resume Enhanced
Method
1
XXX
50
Blank Check
1
(SA)
555
33
ID
-C
FI
(
Aut
o
se
le
ct
)
ASO
ID (Autoselect) Entry
3
555
AA
2AA
55
(SA)
555
90
CFI Enter
1
(SA)
55
98
ID-CFI Read
1
RA
RD
Reset/ASO Exit
(Notes
1
XXX
F0
Secure Silicon Region Command Definitions
S
e
cure Sil
ic
on
R
eg
ion
(S
SR) ASO
SSR Entry
3
555
AA
2AA
55
(SA)
555
88
Read
1
RA
RD
Word Program
4
555
AA
2AA
55
555
A0
PA
PD
Write to Buffer
6
555
AA
2AA
55
SA
25
SA
WC
WBL
PD
WBL
PD
Program Buffer to Flash
(confirm)
1
SA
29
Write-to-Buffer-Abort Reset
3
555
AA
2AA
55
555
F0
SSR Exit
4
555
AA
2AA
55
555
90
XX
0
Reset/ASO Exit
(Notes
1
XXX
F0