MX29F200C T/B
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).
TABLE 1. SOFTWARE COMMAND DEFINITIONS
First Bus
Cycle
Second Bus Third Bus
Cycle Cycle
Fourth Bus
Cycle
Fifth Bus
Cycle
Sixth Bus
Cycle
Command
Bus
Cycle Addr Data
Addr Data Addr Data Addr
Data
Addr Data
Addr Data
Reset
1
1
4
4
4
XXXH F0H
RA RD
Read
Read Silicon ID
Word
Byte
555H AAH
AAAH AAH
555H AAH
2AAH 55H 555H 90H ADI
555H 55H AAAH 90H ADI
2AAH 55H 555H 90H (SA)
DDI
DDI
Sector Protect
Verify
Word
XX00H
X02H XX01H
Byte
4
AAAH AAH
555H 55H AAAH 90H (SA)
00
X04H 01
Program
Word
Byte
Word
Byte
Word
Byte
4
4
6
6
6
6
1
1
6
555H AAH
AAAH AAH
555H AAH
AAAH AAH
555H AAH
AAAH AAH
XXXH B0H
XXXH 30H
555H AAH
2AAH 55H 555H A0H PA
555H 55H AAAH A0H PA
PD
PD
Chip Erase
Sector Erase
2AAH 55H 555H 80H 555H AAH
555H 55H AAAH 80H AAAH AAH
2AAH 55H 555H 80H 555H AAH
555H 55H AAAH 80H AAAH AAH
2AAH 55H
555H 55H
2AAH 55H
555H 55H
555H 10H
AAAH 10H
SA
SA
30H
30H
Sector Erase Suspend
Sector Erase Resume
Unlock for sector
2AAH 55H 555H 80H 555H AAH
2AAH 55H
555H 20H
protect/unprotect
NOTES:
1. ADI = Address of Device identifier; A1=0, A0 =0 for manufacture code, A1=0, A0 =1 for device code.(Refer to Table 3)
DDI = Data of Device identifier : C2H for manufacture code,51H/57H(x8) and 2251H/2257H(x16) 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 to the sector to be erased.
3. The system should generate the following address patterns: 555H or 2AAH to Address A0~A10.
Address bit A11~A16=X=Don't care for all address commands except for Program Address (PA) and Sector Address (SA).
Write Sequence may be initiated with A11~A16 in either state.
4. For Sector Protection 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.
P/N:PM1250
REV. 1.0 , DEC. 14, 2005
6
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