D a t a S h e e t
START
Write Erase
Command Sequence
Data Poll
from System
Embedded
Erase
algorithm
in progress
No
Data = FFh?
Yes
Erasure Completed
Notes:
1. See Table 5, on page 25 for erase command sequence.
2. See DQ3: Sector Erase Timer, on page 30 for more information.
Figure 4. Erase Operation
Table 5. S29AL008D Command Definitions
Bus Cycles (Notes 2-5)
Command
Sequence
(Note 1)
First
Second
Third
Addr
Fourth
Data Addr Data
Fifth
Sixth
Addr Data Addr Data
Addr Data Addr Data
Read (Note 6)
Reset (Note 7)
1
1
RA
RD
F0
XXX
555
AAA
555
AAA
555
AAA
Word
Byte
Word
Byte
Word
Byte
2AA
555
2AA
555
2AA
555
555
AAA
555
AAA
555
AAA
Manufacturer ID
4
4
4
AA
AA
AA
55
55
55
90
90
90
X00
01
X01
X02
X01
X02
22DA
DA
Device ID,
Top Boot Block
225B
5B
Device ID,
Bottom Boot Block
XX00
XX01
00
(SA)
X02
Word
Byte
555
AAA
2AA
555
555
AAA
Sector Protect Verify
(Note 9)
4
AA
55
90
(SA)
X04
01
Word
Byte
Word
Byte
555
AAA
555
AAA
XXX
2AA
555
2AA
555
PA
555
AAA
555
AAA
Program
4
AA
AA
55
55
A0
20
PA
PD
Unlock Bypass
3
Unlock Bypass Program (Note 10)
Unlock Bypass Reset (Note 11)
A0
90
PD
00
2
2
XXX
555
AAA
555
AAA
XXX
XXX
XXX
2AA
555
2AA
555
Word
555
AAA
555
AAA
555
AAA
555
AAA
2AA
555
2AA
555
555
AAA
Chip Erase
6
AA
AA
55
55
80
80
AA
AA
55
55
10
30
Byte
Word
Byte
Sector Erase
6
SA
Erase Suspend (Note 12)
Erase Resume (Note 13)
1
1
B0
30
June 16, 2005 S29AL008D_00A3
S29AL008D
25
SPANSION [ SPANSION ]
