E S I
E S I
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Command Definitions
Table 9. ES29LV320 Command Definitions
Command
Bus Cycles (Notes 2~5)
Fourth
Sequence
(Note 1)
First
Addr
RA
Second
Third
Addr
Fifth
Addr
Sixth
Data
RD
F0
Addr
Data
Data
Addr
Data
Data
Addr
Data
Read (Note 6)
Reset (Note 7)
1
1
XXX
555
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
PA
555
AAA
555
Manufacturer ID
Device ID
4
4
4
4
3
4
4
3
AA
AA
AA
AA
AA
AA
AA
AA
55
55
55
55
55
55
55
55
90
90
90
90
88
90
A0
20
X00
4A
AAA
555
X01
(See
Table 2)
AAA
555
AAA
555
X02
X03
Security Sector Fac
tory Protect (Note 9)
99/19
00/01
AAA
555
AAA
555
X06
(SA)X02
(SA)X04
Sector Protect Verify
(Note 10)
AAA
555
AAA
555
Enter Security Sector Region
Exit Security Sector Region
Program
AAA
555
AAA
555
XXX
PA
00
AAA
555
AAA
555
PD
AAA
555
AAA
555
Unlock Bypass
AAA
XXX
XXX
555
AAA
Unlock Bypass Program (Note 11)
Unlock Bypass Reset (Note 12)
2
2
A0
90
PD
00
XXX
2AA
555
2AA
555
Word
Byte
Word
Byte
555
555
2AA
555
2AA
555
555
Chip Erase
6
6
AA
AA
55
55
80
80
AA
AA
55
55
10
30
AAA
555
AAA
555
AAA
555
AAA
Sector Erase
SA
AAA
XXX
XXX
55
AAA
AAA
Erase Suspend (Note 13)
Erase Resume (Note 14)
1
1
B0
30
Word
Byte
CFI Query (Note 15)
1
98
AA
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 A20-A12 uniquely select any sector.
Notes:
9. The data is 99h for factory locked and 19h for not factory
locked.
10. The data is 00h for an unprotected sector and 01h for a
protected sector.
11. The Unlock Bypass command is required prior to the Unlock-
Bypass Program command.
12. The Unlock Bypass Reset command is required to return
to the read mode when the device is in the unlock bypass
mode.
13. 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.
14. The Erase Resume command is valid only during the Erase
Suspend mode.
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
command sequence, all bus cycles are write cycles.
4. Data bits DQ15-DQ8 are don’t care in command sequences,
except for RD and PD
5. Unless otherwise noted, address bits A20-A11 are don’t cares.
6. No unlock or command cycles required when device is in
read mode.
7. The Reset command is required to return to the read mode
(or to the erase-suspend-read mode if previously in Erase
Suspend) when a device is in the autoselect mode, or if DQ5
goes high (while the device is providing status information).
8. The fourth cycle of the autoselect command sequence
is a read cycle. Data bits DQ15-DQ8 are don’t care. See the
Autoselect Command Sequence section for more information.
15. Command is valid when device is ready to read array data
or when device is in autoselect mode.
23
Rev. 0A May 25, 2006
ES29LV320E