AM29LV160DT-70EC\T Spansion, AM29LV160DT-70EC\T Datasheet - Page 26

• Manufacturer Part Number: AM29LV160DT-70EC\T
• Manufacturer: 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. See Table 1 for description of bus operations.
2. All values are in hexadecimal.
3. Except for the read cycle and the fourth cycle of the autoselect
4. Data bits DQ15–DQ8 are don’t cares for unlock and command
5. Address bits A19–A11 are don’t cares for unlock and
6. No unlock or command cycles required when reading array
7. The Reset command is required to return to reading array data
8. The fourth cycle of the autoselect command sequence is a
14. The Erase Resume command is valid only during the Erase Suspend mode.
Read (Note 6)
Reset (Note 7)
CFI Query (Note 10)
Program
Unlock Bypass
Unlock Bypass Program (Note 11)
Unlock Bypass Reset (Note 12)
Chip Erase
Sector Erase
Erase Suspend (Note 13)
Erase Resume (Note 14)
24
command sequence, all bus cycles are write cycles.
cycles.
command cycles, unless SA or PA required.
data.
when device is in the autoselect mode, or if DQ5 goes high
(while the device is providing status data).
read cycle.
Manufacturer ID
Device ID,
Top Boot Block
Device ID,
Bottom Boot Block
Sector Protect Verify
(Note 9)
Command
Sequence
(Note 1)
Word
Word
Word
Word
Word
Word
Word
Word
Word
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Table 9. Am29LV160D Command Definitions
1
1
4
4
4
4
1
4
3
2
2
6
6
1
1
Addr
AAA
XXX
XXX
XXX
AAA
AAA
AAA
AAA
AAA
AAA
AAA
XXX
XXX
555
555
555
555
555
555
555
555
RA
AA
55
First
Data
RD
AA
AA
AA
AA
AA
AA
AA
AA
D A T A
F0
A0
B0
98
90
30
Addr
2AA
2AA
2AA
2AA
2AA
2AA
XXX
2AA
2AA
Am29LV160D
555
555
555
555
555
555
555
555
PA
Second
Data
S H E E T
PD
55
55
55
55
55
55
00
55
55
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.
9. The data is 00h for an unprotected sector and 01h for a
10. Command is valid when device is ready to read array data or
11. The Unlock Bypass command is required prior to the Unlock
12. The Unlock Bypass Reset command is required to return to
13. The system may read and program in non-erasing sectors, or
protected sector. See “Autoselect Command Sequence” for
more information.
when device is in autoselect mode.
Bypass Program command.
reading array data when the device is in the unlock bypass
mode.
enter the autoselect mode, when in the Erase Suspend mode.
The Erase Suspend command is valid only during a sector
erase operation.
Addr
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
555
555
555
555
555
555
555
555
Bus Cycles (Notes 2–5)
Third
Data
90
90
90
90
A0
20
80
80
Addr
(SA)
(SA)
AAA
AAA
X00
X01
X02
X01
X02
X02
X04
555
555
PA
Fourth
22C4
XX00
XX01
2249
Data
C4
PD
AA
AA
01
49
00
01
Addr
2AA
2AA
555
555
Fifth
May 5, 2006 22358B7
Data
55
55
Addr
AAA
555
SA
Sixth
Data
10
30