MX29F080
TABLE1. SOFTWARE COMMAND DEFINITIONS
First Bus
Command
Reset
Read
Read Silicon ID
Sector Group
Protect Verify
Porgram
Chip Erase
Sector Erase
Sector Erase Suspend
Sector Erase Resume
4
6
6
1
1
555H
555H
555H
XXXH
XXXH
AAH
AAH
AAH
B0H
30H
2AAH 55H
2AAH 55H
2AAH 55H
555H A0H
555H 80H
555H 80H
PA
555H
555H
Bus
Cycle
1
1
4
4
Cycle
Addr
XXXH
RA
555H
555H
Data
F0H
RD
AAH
AAH
2AAH 55H
2AAH 55H
555H 90H
555H 90H
ADI
DDI
01H
PD
AAH 2AAH 55H 555H 10H
AAH 2AAH 55H SA
30H
SGAx02 00H
Second Bus
Cycle
Addr
Third Bus
Cycle
Data Addr
Data
Fourth Bus
Cycle
Addr
Fifth Bus
Cycle
Sixth Bus
Cycle
Data Addr Data Addr Data
Note:
1. ADI = Address of Device identifier; A1=0, A0 = 0 for manufacture code,A1=0, A0 = 1 for device code. A2-A19=do
not care. (Refer to Table 3)
DDI = Data of Device identifier : C2H for manufacture code, D5H for device code.
X = X can be VIL or VIH
RA=Address of memory location to be read.
RD=Data to be read at location RA.
2.PA = Address of memory location to be programmed.
PD = Data to be programmed at location PA.
SA = Address of the sector to be erased. Address A16-A19 select a unigue sector.
SGA=Address of the sector group. Address A17~A19 select a unigue sector group.
3.The system should generate the following address patterns: 555H or 2AAH to Address A10~A0 .
Address bit A11~A19=X=Don't care for all address commands except for Program Address (PA) and Sector
Address (SA). Write Sequence may be initiated with A11~A19 in either state.
4.For Sector Group Protect Verify Operation : If read out data is 01H, it means the sector has been protected.If read
out data is 00H,it means the sector is still not being protected.
COMMAND DEFINITIONS
Device operations are selected by writing specific address
and data sequences into the command register. Writing
incorrect address and data values or writing them in the
improper sequence will reset the device to the read mode.
Table 1 defines the valid register command sequences.
Note that the Erase Suspend (B0H) and Erase Resume
(30H) commands are valid only while the Sector Erase
operation is in progress. Either of the two reset command
sequences will reset the device(when applicable).
P/N:PM0579
REV. 1.4, JAN. 16, 2002
6
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