Vizio VX37L HDTV10A Service Manual page 59

7.Command is valid when device is ready to read array data or when device is in Automatic
Select mode.
8.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.
9.The Erase Resume command is valid only during the Erase Suspend mode.
STANDBY MODE
MX29LV320AT/B can be set into Standby mode with two different approaches. One is
using both CE and RESET pins and the other one is using RESET pin only.
When using both pins of CE and RESET, a CMOS Standby mode is achieved with both
pins held at Vcc ±0.3V. Under this condition, the current consumed is less than 0.2uA
(typ.). If both of the CE and RESET are held at VIH, but not within the range of VCC ± 0.3V,
the device will still be in the standby mode, but the standby current will be larger. During
Auto Algorithm operation, Vcc active current (ICC2) is required even CE = "H" until the
operation is completed. The device can be read with standard access time (tCE) from
either of these standby modes.
When using only RESET, a CMOS standby mode is achieved with RESET input held at
Vss  0 .3V, Under this condition the current is consumed less than 1uA (typ.). Once the
RESET pin is taken high, the device is back to active without recovery delay.In the standby
mode the outputs are in the high impedance state, independent of the OE
input.MX29LV320AT/B is capable to provide the Automatic Standby Mode to restrain
power consumption during readout of data. This mode can be used effectively with an
application requested low power consumption such as handy terminals.
To active this mode, MX29LV320AT/B automatically switch themselves to low power
mode when MX29LV320AT/B addresses remain stable during access time of tACC+30ns.
It is not necessary to control CE, WE, and OE on the mode. Under the mode, the current
consumed is typically 0.2uA (CMOS level).
RESET OPERATION
01The RESET pin provides a hardware method of resetting the device to reading array
data. When the RESET pin is driven low for at least a period of tRP, the device
immediately terminates any operation in progress, tristates all output pins, and ignores all
read/write commands for the duration of the RESET pulse. The device also resets the
internal state machine to reading array data. The operation that was interrupted should be
reinitiated once the device is ready to accept another command sequence, to ensure data
integrity.
CONFIDENTIAL DO NOT COPY
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Page 7-28
File No. SG-0209