MX29LV800C 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 5 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.
TABLE 6. MX29LV800CT/B BUS OPERATION
ADDRESS
Q8~Q15
DESCRIPTION
CE# OE# WE#RESET# A18 A10 A9 A8 A6 A5 A1 A0 Q0~Q7 BYTE BYTE
A12 A11
A7
A2
=VIH
=VIL
Read
L
L
H
H
AIN
Dout
Dout Q8~Q14
=High Z
Q15=A-1
DIN
Write
L
X
H
X
X
H
X
L
X
X
H
X
H
L
AIN
X
DIN(3)
Reset
High Z High Z High Z
DIN DIN High Z
Temporary sector unlock
Output Disable
Standby
X
VID
H
AIN
X
L
High Z High Z High Z
High Z High Z High Z
Vcc±
0.3V
L
Vcc±
0.3V
VID
VID
H
X
Sector Protect
H
H
L
L
L
SA
X
X
X
X
X
X
X
X
X
L
H
L
X
X
X
H
H
H
L
L
L
DIN
DIN
X
X
X
X
X
X
Chip Unprotected
Sector Protection Verify
L
L
H
SA
VID
CODE(5)
NOTES:
1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 5.
2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V.
3. Refer to Table 5 for valid Data-In during a write operation.
4. X can be VIL or VIH.
5. Code=00H/XX00H means unprotected.
Code=01H/XX01H means protected.
6. A18~A12=Sector address for sector protect.
7. The sector protect and chip unprotected functions may also be implemented via programming equipment.
P/N:PM1183
REV. 1.4, APR. 24, 2006
12
Macronix [ MACRONIX INTERNATIONAL ]
