參數(shù)資料
型號(hào)： AM29PL320DT70
廠商： Spansion Inc.
英文描述： 32 Megabit (2 M x 16-Bit/1 M x 32-Bit) CMOS 3.0 Volt-only High Performance Page Mode Flash Memory
中文描述： 32兆位（2米× 16位/ 1個(gè)M × 32位）的CMOS 3.0伏，不僅具備高性能頁面模式閃存
文件頁數(shù)： 27/50頁
文件大小： 947K
代理商： AM29PL320DT70
October 2, 2003
Am29PL320D
25
Command Definitions
Table 13.
Command Definitions (Double Word Mode)
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.
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.
Notes:
1.
2.
3.
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.
10. The data is 80h for factory locked and 00h for not factory locked.
4.
5.
6.
7.
8.
9.
11. The data is 00h for an unprotected sector and 01h for a protected
sector. See “Autoselect Command Sequence” for more information.
12. Command is valid when device is ready to read array data or when
device is in autoselect mode.
13. The Unlock Bypass command is required prior to the Unlock Bypass
Program command.
14. The Unlock Bypass Reset command is required to return to reading
array data when the device is in the unlock bypass mode.
15. The system may read and program in non-erasing sectors, or enter
the autoselect mode, when in the Erase Suspend mode. The Erase
Suspend command is valid only during a sector erase operation.
16. The Erase Resume command is valid only during the Erase Suspend
mode.
Command
Sequence
(Note 1)
C
Bus Cycles (Notes 2–5)
Third
Addr
Data
First
Second
Addr
Fourth
Fifth
Sixth
Addr
RA
XXX
555
555
Data
RD
F0
AA
AA
Data
Addr
Data
Addr
Data
Addr
Data
Read (Note 6)
Reset (Note 7)
Manufacturer ID
Device ID (Note 9)
SecSi
Sector Factory
Protect (Note 10)
1
1
4
6
A
2AA
2AA
55
55
555
555
(BA)
555
90
90
00
01
(BA)
X03
01
227E
0E
2203
0F
2200 2201
4
555
AA
2AA
55
90
(Note 10)
Sector Protect Verify
(Note 11)
4
555
AA
2AA
55
555
90
(SA)
X02
(Note 11)
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)
Chip Erase
Sector Erase
Erase Suspend (Note 15)
Erase Resume (Note 16)
Temporary Sector Unprotect
Enable
Temporary Sector Unprotect
Disable
3
4
1
4
3
555
555
55
555
555
AA
AA
98
AA
AA
2AA
2AA
55
55
555
555
88
90
XXX
00
2AA
2AA
55
55
555
555
A0
20
PA
PD
2
XXX
A0
PA
PD
2
6
6
1
1
XXX
555
555
XXX
XXX
90
AA
AA
B0
30
XXX
2AA
2AA
00
55
55
555
555
80
80
555
555
AA
AA
2AA
2AA
55
55
555
SA
10
30
4
555
AA
2AA
55
555
E0
XXX
01
4
555
AA
2AA
55
555
E0
XXX
00
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