ES29LV160F Datasheet, PDF (25/71 Pages) Excel Semiconductor Inc. – 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

ES29LV160F
Excel Semiconductor Inc.
8.1.4 Power-Up Write Inhibit
If WE# = CE# = VIL and OE# = VIH during power up, the device does not accept commands on
the rising edge of WE#. The internal state machine is automatically reset to reading array data on
power-up.
9. Command Definitions
Writing specific address and data commands or sequences into the command register initiates
device operations. Table 10.1 on page 32 defines the valid register command sequences. Writing
incorrect address and data values or writing them in the improper sequence resets the device
to reading array data.
All addresses are latched on the falling edge of WE# or CE#, whichever happens later. All data is
latched on the rising edge of WE# or CE#, whichever happens first. Refer to the appropriate timing
diagrams in AC Characteristics on page 45.
9.1 Reading Array Data
The device is automatically set to reading array data after device power-up. No commands are
required to retrieve data. The device is also ready to read array data after completing an
Embedded Program or Embedded Erase algorithm.
After the device accepts an Erase Suspend command, the device enters the Erase Suspend mode.
The system can read array data using the standard read timings, except that if it reads at an
address within erase suspended sectors, the device outputs status data. After completing a
programming operation in the Erase Suspend mode, the system may once again read array data
with the same exception. See Erase Suspend/ Erase Resume Commands on page 30 for more
information on this mode.
The system must issue the reset command to re-enable the device for reading array data if DQ5
goes high, or while in the autoselect mode. See Reset Command on page 25.
See also Requirements for Reading Array Data on page 12 for more information. The Read
Operations on page 45 provides the read parameters, and Figure 17.1 on page 45 shows the
timing diagram.
9.2 Reset Command
Writing the reset command to the device resets the device to reading array data. Address bits are
don’t care for this command.
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