AM29PL320D SPANSION [SPANSION], AM29PL320D Datasheet - Page 27

• Manufacturer Part Number: AM29PL320D
• Description: 32 Megabit (2 M x 16-Bit/1 M x 32-Bit) CMOS 3.0 Volt-only High Performance Page Mode Flash Memory
• Manufacturer: SPANSION [SPANSION]

Command Definitions
Legend:
X = Don’t care
RA = Address of the memory location to be read.
RD = Data read from location RA during read operation.
PA = Address of the memory location to be programmed. Addresses latch
on the falling edge of the WE# or CE# pulse, whichever happens later.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. The data is 80h for factory locked and 00h for not factory locked.
October 2, 2003
Read (Note 6)
Reset (Note 7)
Enter SecSi Sector Region
Exit SecSi Sector Region
CFI Query (Note 12)
Program
Unlock Bypass
Unlock Bypass Program
(Note 13)
Unlock Bypass Reset (Note 14) 2
Chip Erase
Sector Erase
Erase Suspend (Note 15)
Erase Resume (Note 16)
Temporary Sector Unprotect
Enable
Temporary Sector Unprotect
Disable
See Table 1 for description of bus operations.
All values are in hexadecimal.
Except for the read cycle and the fourth cycle of the autoselect
command sequence, all bus cycles are write cycles.
Data bits DQ31–DQ8 are don’t cares for unlock and command
cycles.
Address bits A19–A11 are don’t cares for unlock and command
cycles, unless SA or PA required.
No unlock or command cycles required when reading array data.
The Reset command is required to return to reading array data when
device is in the autoselect mode, or if DQ5 goes high (while the
device is providing status data).
The fourth cycle of the autoselect command sequence is a read
cycle.
DQ31–DQ16 output 2222h for device ID reads. The device ID must
be read across the fourth, fifth, and sixth cycles. The sixth cycle
specifies 22222200h for bottom boot devices and 22222201h for top
boot devices.
Manufacturer ID
Device ID (Note 9)
SecSi™ Sector Factory
Protect (Note 10)
Sector Protect Verify
(Note 11)
Command
Sequence
(Note 1)
1
1
4
6
4
4
3
4
1
4
3
2
6
6
1
1
4
4
Table 13. Command Definitions (Double Word Mode)
Addr
XXX
XXX
XXX
XXX
XXX
555
555
555
555
555
555
555
555
555
555
555
555
RA
55
First
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
A0
AA
AA
B0
AA
AA
F0
98
90
30
Addr
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
XXX
2AA
2AA
2AA
2AA
PA
Second
Am29PL320D
Data
PD
55
55
55
55
55
55
55
55
00
55
55
55
55
Addr
(BA)
555
555
555
555
555
555
555
555
555
555
555
555
Third
PD = Data to be programmed at location PA. Data latches on the rising
edge of WE# or CE# pulse, whichever happens first.
SA = Address of the sector to be verified (in autoselect mode) or erased.
Address bits A19–A12 uniquely select any sector.
11. The data is 00h for an unprotected sector and 01h for a protected
12. Command is valid when device is ready to read array data or when
13. The Unlock Bypass command is required prior to the Unlock Bypass
14. The Unlock Bypass Reset command is required to return to reading
15. The system may read and program in non-erasing sectors, or enter
16. The Erase Resume command is valid only during the Erase Suspend
Bus Cycles (Notes 2–5)
sector. See “Autoselect Command Sequence” for more information.
device is in autoselect mode.
Program command.
array data when the device is in the unlock bypass mode.
the autoselect mode, when in the Erase Suspend mode. The Erase
Suspend command is valid only during a sector erase operation.
mode.
Data
90
90
90
90
88
90
A0
20
80
80
E0
E0
Addr
(BA)
(SA)
XXX
XXX
XXX
X03
X02
555
555
00
01
PA
Fourth
(Note 10)
(Note 11)
Data
227E
PD
AA
AA
01
00
01
00
Addr
2AA
2AA
0E
Fifth
Data
2203
55
55
Addr
555
SA
0F
Sixth
2200 2201
Data
10
30
25