ES29LV400E Datasheet, PDF (15/51 Pages) Excel Semiconductor Inc. – 4Mbit(512Kx 8/256K x 16) CMOS 3.0 Volt-only, Boot Sector Flash Memory

EE SS II
Excel Semiconductor inc.
Command Definitions
Table 5. ES29LV400 Command Definitions
Command
Sequence
(Note 1)
Read (Note 6)
Reset (Note 7)
Manufacturer ID
Word
Byte
Device ID (Top)
Word
Byte
Device ID (Bottom)
Word
Byte
Sector Protect Verify
(Note 9)
Word
Byte
Program
Word
Byte
Unlock Bypass
Word
Byte
Unlock Bypass Program (Note 10)
Unlock Bypass Reset (Note 11)
Chip Erase
Word
Byte
Sector Erase
Word
Byte
Erase Suspend (Note 12)
Erase Resume (Note 13)
First
Addr
1 RA
1 XXX
555
4
AAA
555
4
AAA
555
4
AAA
555
4
AAA
555
4
AAA
555
3
AAA
2 XXX
2 XXX
555
6
AAA
555
6
AAA
1 XXX
1 XXX
Data
RD
F0
AA
AA
AA
AA
AA
AA
A0
90
AA
AA
B0
30
Second
Addr Data
2AA
55
555
2AA
55
555
2AA
55
555
2AA
55
555
2AA
55
555
2AA
55
555
PA
PD
XXX
00
2AA
55
555
2AA
55
555
Third
Addr
Bus Cycles (Notes 2~5)
Fourth
Data Addr
Data
555
90
AAA
555
90
AAA
555
90
AAA
555
90
AAA
555
A0
AAA
555
20
AAA
X00
4A
X01
X02
X01
X02
(SA)X02
(SA)X04
B9
BA
00/01
PA
PD
555
555
80
AA
AAA
AAA
555
555
80
AA
AAA
AAA
Fifth
Addr
Data
Sixth
Addr
Data
2AA
55
555
2AA
55
555
555
10
AAA
SA
30
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 A17-A12 uniquely select any sector.
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
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 A17-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.
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.
13. The Erase Resume command is valid only during the Erase
Suspend mode.
ES29LV400E
15
Rev.0B January 5, 2006