EN29LV800JB-70T データシートの表示（PDF） - Eon Silicon Solution Inc.
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EN29LV800JB-70T
Eon Silicon Solution Inc.
EN29LV800JB-70T Datasheet PDF : 42 Pages
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EN29LV800J
COMMAND DEFINITIONS
The operations of the EN29LV800J are selected by one or more commands written into the
command register to perform Read/Reset Memory, Read ID, Read Sector Protection, Program,
Sector Erase, Chip Erase, Erase Suspend and Erase Resume. Commands are made up of data
sequences written at specific addresses via the command register. The sequences for the
specified operation are defined in the Command Definitions table (Table 5). Incorrect addresses,
incorrect data values or improper sequences will reset the device to Read Mode.
Table 5. EN29LV800J Command Definitions
Bus Cycles
Command
Sequence
1st
Write Cycle
2nd
Write Cycle
3rd
Write Cycle
4th
Write Cycle
5th
Write Cycle
Add Data Add Data Add Data Add Data Add Data
Read
1 RA RD
Reset
1 xxx F0
Manufacturer
ID
Word
4
Byte
555
AA
AAA
2AA
55
555
555
90
AAA
000/ 7F/
001 1C
000/ 7F/
001 1C
Device ID
Top Boot
Word
Byte
4
555
AAA
AA
2AA
555
55
555
AAA
90
X01 22DA
X02 DA
Device ID
Bottom Boot
Word 4 555 AA 2AA 55
Byte
AAA
555
555 90
AAA
X01 225B
X02 5B
Sector Protect Word
Verify
Byte
4
555
AA
AAA
2AA
55
555
555
90
AAA
(SA)
X02
(SA)
X04
XX00
XX01
00
01
Program
Word
Byte
4
555
AAA
AA
2AA
555
55
555
AAA
A0
PA
PD
Unlock Bypass
Word
Byte
3
555
AAA
AA
2AA
555
55
555
AAA
20
Unlock Bypass Program 2 XXX A0 PA PD
Unlock Bypass Reset
2 XXX 90 XXX 00
Chip Erase
Word
Byte
6
555
AAA
AA
2AA
555
55
555
AAA
80
555
AAA
AA
2AA
555
55
Sector Erase
Word
Byte
6
555
AAA
AA
2AA
555
55
555
AAA
80
555
AAA
AA
2AA
555
55
Erase Suspend
1 xxx B0
Erase Resume
1 xxx 30
Address and Data values indicated in hex
RA = Read Address: address of the memory location to be read. This is a read cycle.
RD = Read Data: data read from location RA during Read operation. This is a read cycle.
PA = Program Address: address of the memory location to be programmed. X = Don’t-Care
PD = Program Data: data to be programmed at location PA
SA = Sector Address: address of the Sector to be erased or verified. Address bits A18-A12 uniquely select any Sector.
6th
Write Cycle
Add Data
555
AAA
10
SA 30
Reading Array Data
The device is automatically set to reading array data after power up. No commands are required to
retrieve data. The device is also ready to read array data after completing an Embedded Program or
Embedded Erase algorithm.
Following an Erase Suspend command, Erase Suspend mode is entered. The system can read array
data using the standard read timings, with the only difference in that if it reads at an address within erase
suspended sectors, the device outputs status data. After completing a programming operation in the
Erase Suspend mode, the system may once again read array data with the same exception.
4800 Great America Parkway, Suite 202
11
Santa Clara, CA 95054
Rev 0.1 Release Date: 2002/01/30
Tel: 408-235-8680
Fax: 408-235-8685
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