AUSTIN SEMICONDUCTOR, INC.
Austin Semiconductor, Inc.
If RESET\ is asserted during a PROGRAM or ERASE opera-
tion, the RY/BY\ pin remains a “0” (busy) until the internal
reset operation is complete, which requires a time of tREADY.
The system can thus monitor RY/BY\ to determine whether the
RESET operation is complete. If RESET\ is asserted when a
AS8FLC2M32
FLASH
Autoselect Code Table
PROGRAM or ERASE operation is not executing (RY/BY\ pin
is “1”), the RESET operation is completed within a time of
tREADY. The system can read data tRH after the RESET\ pin
returns to VIH.
Refer to the “AC Characteristics” tables for RESET\ parameters.
identification, and sector protection verification through
identifier codes output via the appropriate Byte DQ’s. This
mode is primarily intended for programming equipment to
automatically match a device to be programmed with its
corresponding programming algorithm. However, the
autoselect codes can also be accessed in-system through the
command register.
When using programming equipment (modified to support
multi-byte devices, or supplied from the programming
equipment provider as such), the autoselect mode requires
VID (11.5v to 12.5v) on address pin A9. Address pins A6, A1,
and A0 must be as shown in the Autoselect Table below. In
addtion, when verifying sector protection, the sector address
must appear on the appropriate highest order address bits.
When all necessary bits have been set as required, the
programming equipment may then read the corresponding
identifier code on the appropriate Byte DQ’s.
To access the autoselect codes in-system, the host system
can issue the autoselect command via the command register.
Output Disable Mode
When the OE\ input is at VIH, output from the device is disabled.
The output pins are placed in the high Impedance State.
Autoselect Mode
The autoselect mode provides manufacturer and device
AS8FLC2M32B
Rev. 1.2 5/09
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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AUSTIN [ AUSTIN SEMICONDUCTOR ]
