MX29F080
TABLE 1. SOFTWARE COMMAND DEFINITIONS
Command
Reset
Read
Read Silicon ID
Sector Group
Protect Verify
Program
Chip Erase
Sector Erase
Sector Erase Suspend
Sector Erase Resume
Bus
Cycle
1
1
4
4
4
6
6
1
1
First Bus
Cycle
Addr Data
XXXH F0H
RA RD
555H AAH
555H AAH
555H AAH
555H AAH
555H AAH
XXXH B0H
XXXH 30H
Second Bus
Cycle
Addr Data
2AAH 55H
2AAH 55H
2AAH 55H
2AAH 55H
2AAH 55H
Third Bus
Cycle
Addr Data
555H 90H
555H 90H
555H A0H
555H 80H
555H 80H
Fourth Bus Fifth Bus Sixth Bus
Cycle
Cycle
Cycle
Addr Data Addr Data Addr Data
ADI
DDI
SGAx02 00H
01H
PA
PD
555H AAH 2AAH 55H 555H 10H
555H AAH 2AAH 55H SA 30H
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 unique sector.
SGA=Address of the sector group. Address A17~A19 select a unique 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 ad-
dress 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
6
REV. 1.6, NOV. 21, 2002