address decoding of flash memory (bios rom chip)

[gandhig]

is it possible to find the address decoding logic of a 2 mbits flash memory (256K x 8) which is used as bios rom from its datasheet? the flash memory is divided into 5 blocks of 128 KB, 96 KB, 8 KB, 8 KB & 16 KB. it is written as compatible with standard microprocessor interface and JEDEC flash compatible pin out. i want to know which address pins will be used for the top 128 KB block and the bottom 16 KB block. can someone guide me?

regards,
g.gandhi

 

[FvM]

You forgot to tell the type.

In case of doubt, the device has just a linear memory space and block structure is only relevant for reprogramming-

 

[gandhig]

Hi, it is a 32 pin plcc type with part code Pm29f002t-12jc. the datasheet says that it is a memory array with X and y decoder. I want to force a checksum error for a particular block of address (range 00000-1FFFFh) in my bios by shorting relevant address pins so that it can start the recovery. Thanks.