MX29F022 Macronix, MX29F022 Datasheet - Page 5

• Manufacturer Part Number: MX29F022
• Description: 2M-BIT[256K x 8]CMOS FLASH MEMORY
• Manufacturer: Macronix

Table 1 Software Command Definitions
Note:
1. ADI = Address of Device identifier; A1=0,A0 =0 for manufacture code,A1=0, A0 =1 for device code (Refer to Table 3).
2. PA = Address of memory location to be programmed.
3. The system should generate the following address patterns: 555H or 2AAH to Address A0~A10.
4. For Chip Protect Verify operation:If read out data is 01H, it means the chip has been protected. If read out data is 00H,
P/N:PM0556
Command
Reset
Read
Read Silicon ID
Chip Protect Verify
Porgram
Chip Erase
Sector Erase
Sector Erase Suspend
Sector Erase Resume
Unlock for chip
protect/unprotect
DDI = Data of Device identifier : C2H for manufacture code, 36H/37H 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.
PD = Data to be programmed at location PA.
SA = Address to the sector to be erased.
Address bit A11~A17=X=Don't care for all address commands except for Program Address (PA) and Sector
Address (SA). Write Sequence may be initiated with A11~A17 in either state.
it means the chip is still not being protected.
Cycle Addr
Bus
6
1
4
4
6
1
1
6
1
4
First Bus
RA
555H
555H
555H AAH 2AAH 55H
555H AAH 2AAH 55H
555H AAH 2AAH 55H
XXXH B0H
XXXH 30H
555H AAH 2AAH 55H
Cycle
XXXH F0H
Data Addr
RD
AAH 2AAH 55H
AAH 2AAH 55H
Second Bus Third Bus
Cycle
Data
5
555H 80H 555H AAH 2AAH 55H SA
555H 80H 555H AAH 2AAH 55H 555H 20H
Cycle
Addr
555H 90H
555H 90H
555H A0H PA
555H 80H 555H AAH 2AAH 55H 555H 10H
MX29F022/022N
Data Addr
Fourth Bus
Cycle
ADI
(SA)
X02H 01H
Data Addr
DDI
00H
PD
Fifth Bus
Cycle
Data Addr Data
REV. 1.1, JUN. 14, 2001
Sixth Bus
Cycle
30H