D a t a
S h e e t
Table 11.
Cycles
Command
Sequence
Read (Note 5)
Reset (Note 6)
Autoselect (Note 7)
Manufacturer ID
Device ID, Top Boot (Note 8)
Device ID, Bottom Boot (Note
Secured Silicon Sector Factory
Protect
Sector Group Protect Verify
Command Definitions (x8 Mode, BYTE# = V
IL
)
Bus Cycles (Notes 2–5)
First
Second
Addr
Data
Third
Addr
Data
Fourth
Addr
Data
Fifth
Addr
Data
Sixth
Addr
Data
Addr
RA
XXX
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
XXX
XXX
AAA
AAA
XXX
XXX
AA
Data
RD
F0
AA
AA
AA
AA
AA
AA
AA
AA
AA
A0
90
AA
AA
B0
30
98
1
1
4
6
6
4
4
3
4
4
3
2
2
6
6
1
1
1
555
555
555
555
555
555
555
555
555
PA
XXX
555
555
55
55
55
55
55
55
55
55
55
PD
00
55
55
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
90
90
90
90
90
88
90
A0
20
X00
X02
X02
X44
(SA)X04
01
C4
49
(Note 9)
00/01
Enter Secured Silicon Sector Region
Exit Secured Silicon Sector Region
Program
Unlock Bypass
Unlock Bypass Program (Note 10)
Unlock Bypass Reset (Note 11)
Chip Erase
Sector Erase
Program/Erase Suspend (Note 12)
Program/Erase Resume (Note 13)
CFI Query (Note 14)
XXX
PA
00
PD
AAA
AAA
80
80
AAA
AAA
AA
AA
555
555
55
55
AAA
SA
10
30
Legend:
X = Don’t care
RA = Read Address of memory location to be read.
RD = Read Data read from location RA during read operation.
PA = Program Address. Addresses latch on falling edge of WE# or CE# pulse, whichever happens later.
PD = Program Data for location PA. Data latches on rising edge of WE# or CE# pulse, whichever happens first.
SA = Sector Address of sector to be verified (in autoselect mode) or erased. Address bits A19–A15 uniquely select any sector.
Notes:
1. See Table
1
for description of bus operations.
2. All values are in hexadecimal.
3. Shaded cells indicate read cycles. All others are write
cycles.
4. During unlock and command cycles, when lower address
bits are 555 or AAA as shown in table, address bits above
A11 are don’t care.
5. No unlock or command cycles required when device is in
read mode.
6. Reset command is required to return to read mode (or to
erase-suspend-read mode if previously in Erase Suspend)
when device is in autoselect mode, or if DQ5 goes high
while device is providing status information.
7. Fourth cycle of autoselect command sequence is a read
cycle. Data bits DQ15–DQ8 are don’t care. See
Autoselect
Command Sequence
section or more information.
8. Device ID must be read in three cycles.
9. Data is 00h for an unprotected sector group and 01h for a
protected sector group.
10. Unlock Bypass command is required prior to Unlock
Bypass Program command.
11. Unlock Bypass Reset command is required to return to
read mode when device is in unlock bypass mode.
12. System may read and program in non-erasing sectors, or
enter autoselect mode, when in Erase Suspend mode.
Erase Suspend command is valid only during a sector
erase operation.
13. Erase Resume command is valid only during Erase
Suspend mode.
14. Command is valid when device is ready to read array data
or when device is in autoselect mode.
October 11, 2006 S29AL016M_00_A7
S29AL016M
33
SPANSION [ SPANSION ]
