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M50FLW080 datasheet and PDF check from
http://www.chinaicmart.com/suppliers/569/M50FLW080.html
8 Mbit (13 x 64KByte Blocks + 3 x 16 x 4KByte Sectors) 3V Supply
Firmware Hub / Low Pin Count Flash Memory
M50FLW080 SUMMARY DESCRIPTION
The M50FLW080 is a 8 Mbit (1M x8) non-volatile memory that can be
read, erased and reprogrammed. These operations can be performed using
a single low voltage (3.0 to 3.6V) supply. For fast programming and
fast erasing on production lines, an optional 12V power supply can be
used to reduce the erasing and programming time.
The memory is divided into 16 Uniform Blocks of 64 KBytes each, three
of which are divided into 16 uniform sectors of 4 KBytes each (see
APPENDIXA. for details). All blocks and sectors can be erased
independently. So, it is possible to preserve valid data while old
data is erased. Blocks can be protected individually to prevent
accidental program or erase commands from modifying their contents.
Program and erase commands are written to the Command Interface of the
memory. An on-chip Program/Erase Controller simplifies the process of
programming or erasing the memory by taking care of all of the special
operations that are required to update the memory contents. The end of
a program or erase operation can be detected and any error conditions
identified. The command set to control the memory is consistent with
the JEDEC standards.Two different bus interfaces are supported by the
memory:
ďż˝?The primary interface, the FWH/LPC Interface, uses Intelâs
proprietary Firmware Hub (FWH) and Low Pin Count (LPC)
protocol. This has been designed to remove the need for the ISA bus in
current PC Chipsets. The M50FLW080 acts as the PC
BIOS on the Low Pin Count bus for these PC Chipsets.
ďż˝?The secondary interface, the Address/Address Multiplexed (or A/A
Mux) Interface, is designed to be compatible with current Flash
Programmers, for production line programming prior to fitting the
device in a PC Motherboard. The memory is supplied with all the bits
erased (set to ďż˝?ďż˝?.
http://www.chinaicmart.com/suppliers/569/M50FLW080.html
8 Mbit (13 x 64KByte Blocks + 3 x 16 x 4KByte Sectors) 3V Supply
Firmware Hub / Low Pin Count Flash Memory
M50FLW080 SUMMARY DESCRIPTION
The M50FLW080 is a 8 Mbit (1M x8) non-volatile memory that can be
read, erased and reprogrammed. These operations can be performed using
a single low voltage (3.0 to 3.6V) supply. For fast programming and
fast erasing on production lines, an optional 12V power supply can be
used to reduce the erasing and programming time.
The memory is divided into 16 Uniform Blocks of 64 KBytes each, three
of which are divided into 16 uniform sectors of 4 KBytes each (see
APPENDIXA. for details). All blocks and sectors can be erased
independently. So, it is possible to preserve valid data while old
data is erased. Blocks can be protected individually to prevent
accidental program or erase commands from modifying their contents.
Program and erase commands are written to the Command Interface of the
memory. An on-chip Program/Erase Controller simplifies the process of
programming or erasing the memory by taking care of all of the special
operations that are required to update the memory contents. The end of
a program or erase operation can be detected and any error conditions
identified. The command set to control the memory is consistent with
the JEDEC standards.Two different bus interfaces are supported by the
memory:
ďż˝?The primary interface, the FWH/LPC Interface, uses Intelâs
proprietary Firmware Hub (FWH) and Low Pin Count (LPC)
protocol. This has been designed to remove the need for the ISA bus in
current PC Chipsets. The M50FLW080 acts as the PC
BIOS on the Low Pin Count bus for these PC Chipsets.
ďż˝?The secondary interface, the Address/Address Multiplexed (or A/A
Mux) Interface, is designed to be compatible with current Flash
Programmers, for production line programming prior to fitting the
device in a PC Motherboard. The memory is supplied with all the bits
erased (set to ďż˝?ďż˝?.