E S I
E S I
Excel Semiconductor inc.
Command Definitions
Table 5. ES29LV800 Command Definitions
Bus Cycles (Notes 2~5)
Fourth
Command
Sequence
(Note 1)
First
Addr
RA
Second
Addr
Third
Addr
Fifth
Addr
Sixth
Data
RD
F0
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
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
2AA
555
PA
555
AAA
555
Manufacturer ID
Device ID (Top)
Device ID (Bottom)
4
4
4
4
4
3
AA
AA
AA
AA
AA
AA
55
55
55
55
55
55
90
90
90
90
A0
20
X00
4A
AAA
555
X01
DA
AAA
555
AAA
555
X02
X01
5B
AAA
555
AAA
555
X02
(SA)X02
(SA)X04
Sector Protect Verify
(Note 9)
00/01
PD
AAA
555
AAA
555
Program
PA
AAA
555
AAA
555
Unlock Bypass
AAA
XXX
XXX
555
AAA
Unlock Bypass Program (Note 10)
Unlock Bypass Reset (Note 11)
2
2
A0
90
PD
00
XXX
2AA
555
2AA
555
Word
Byte
Word
Byte
555
AAA
555
555
AAA
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
Sector Erase
SA
AAA
XXX
XXX
AAA
AAA
Erase Suspend (Note 12)
Erase Resume (Note 13)
1
1
B0
30
Legend:
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 A18-A12 uniquely select any sector.
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:
9. The data is 00h for an unprotected sector and 01h for a
protected sector.
10. The Unlock Bypass command is required prior to the Unlock-
Bypass Program command.
11. The Unlock Bypass Reset command is required to return
to the read mode when the device is in the unlock bypass
mode.
12. 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.
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 A18-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.
13. The Erase Resume command is valid only during the Erase
Suspend mode.
16
Rev. 1D January 5, 2006
ES29LV800D
EXCELSEMI [ EXCEL SEMICONDUCTOR INC. ]
