MX29LV320C T/B
TABLE 3. MX29LV320CT/B COMMAND DEFINITIONS
First Bus
Cycle
Second Bus Third Bus
Cycle Cycle
Fourth Bus
Cycle
Fifth Bus Sixth Bus
Cycle Cycle
Command
Bus
Cycles Addr Data Addr Data Addr Data Addr
Data Addr Data Addr Data
Read(Note 5)
1
1
RA
RD
Reset(Note 4)
XXX F0
Automatic Select(Note 5)
Manufacturer ID
Word
Byte
4
4
4
4
4
4
4
4
3
3
4
4
4
4
6
6
6
6
1
1
1
1
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
555 AA
AAA AA
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
2AA 55
555 55
555 90
AAA 90
555 90
AAA 90
555 90
AAA 90
555 90
AAA 90
555 88
AAA 88
555 90
AAA 90
555 A0
AAA A0
555 80
AAA 80
555 80
AAA 80
X00
X00
X01
X02
X03
X06
C2H
C2H
ID
Device ID
Word
Byte
Security Sector Factory Word
Protect Verify (Note 6) Byte
Sector Protect Verify Word
99/19
(SA)X02 00/01
(SA)X04
(Note 7)
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Enter Security Sector
Region
Exit Security Sector
XXX
XXX
PA
00
00
Program
PD
PD
AA
AA
AA
AA
PA
Chip Erase
555
AAA
555
AAA
2AA 55 555 10
555 55 AAA 10
2AA 55 SA 30
555 55 SA 30
Sector Erase
CFI Query (Note 8)
55
98
98
B0
30
AA
SA
SA
Erase Suspend(Note 9)
Erase Resume(Note 10)
Legend:
X=Don't care
RA=Address of the memory location to be read.
PD=Data to be programmed at location PA. Data is latched on
the rising edge of WE# or CE# pulse.
RD=Data read from location RA during read operation.
PA=Address of the memory location to be programmed.
Addresses are latched on the falling edge of the WE# or CE#
pulse.
SA=Address of the sector to be erased or verified. Address
bits A20-A12 uniquely select any sector.
ID=22A7h(Top), 22A8h(Bottom)
Notes:
1. See Table 1 for descriptions of bus operations.
2. All values are in hexadecimal.
3. Except when reading array or Automatic Select data, all bus cycles are write operation.
4. The Reset command is required to return to the read mode when the device is in the Automatic Select mode or if Q5 goes
high.
5. The fourth cycle of the Automatic Select command sequence is a read cycle.
6. The data is 99h for factory locked and 19h for not factory locked.
7. The data is 00h for an unprotected sector/sector block and 01h for a protected sector/sector block. In the third cycle of the
command sequence, address bit A20=0 to verify sectors 0~31, A20=1 to verify sectors 32~70 for Top Boot device.
8. Command is valid when device is ready to read array data or when device is in Automatic Select mode.
9. The system may read and program functions in non-erasing sectors, or enter the Automatic Select mode, when in the erase
Suspend mode. The Erase Suspend command is valid only during a sector erase operation.
10. The Erase Resume command is valid only during the Erase Suspend mode.
P/N:PM1188
REV. 1.0, AUG. 02, 2005
16
Macronix [ MACRONIX INTERNATIONAL ]
