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.
Table 5.
Cycles
Command
Sequence
(Note
1)
Read (Note
6)
Reset (Note
Manufacturer ID
Autoselect (Note
8)
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
Word
Byte
Word
Byte
Word
Byte
Word
4
Byte
Word
Byte
Word
Byte
4
AAA
555
AAA
555
AAA
XXX
XXX
555
AAA
555
AAA
XXX
XXX
AA
AA
A0
90
AA
AA
B0
30
First
Addr
RA
XXX
555
AAA
555
AAA
555
AAA
555
AA
555
2AA
555
2AA
555
PA
XXX
2AA
555
2AA
555
Data
RD
F0
AA
AA
AA
2AA
555
2AA
555
2AA
555
2AA
Erase Operation
S29AL008D Command Definitions
Bus Cycles (Notes
2-5)
Second
Addr
Data
Third
Addr
Data
Fourth
Addr
Data
Fifth
Addr
Data
Sixth
Addr
Data
1
1
4
4
4
55
55
55
555
AAA
555
AAA
555
AAA
555
90
90
90
X00
X01
X02
X01
X02
(SA)
X02
(SA)
X04
PA
01
22DA
DA
225B
5B
XX00
XX01
00
01
PD
Sector Protect Verify
(Note
9)
55
AAA
55
55
PD
00
55
55
555
AAA
555
AAA
555
AAA
555
AAA
90
Program
Unlock Bypass
A0
20
3
2
2
6
6
1
1
Unlock Bypass Program (Note
10)
Unlock Bypass Reset (Note
Chip Erase
Sector Erase
Erase Suspend (Note
12)
Erase Resume (Note
Word
Byte
Word
Byte
80
80
555
AAA
555
AAA
AA
AA
2AA
555
2AA
555
55
55
555
AAA
SA
10
30
June 16, 2005 S29AL008D_00A3
S29AL008D
25
SPANSION [ SPANSION ]
