PROT_A1

Description

The Autoselect Mode requires Vpp on adress pin A9, hardware sector protect/unprotect mode - Vpp on some control pins (OE#, WE#, CE#) additionally.
A range of adress lines is not used in memory chip high voltage mode. These programmer adress lines are assigned to drive voltage switches on the crossadapter. The programmer adress line A2 enable Vpp voltage to chip A9, A3 to OE#, A4 to WE#, A10 to CE#. Adress line A11 grounds chip CE#. The pulse from programmer WE# line is forwarded to chip WE# and CE# pins.
Supported 8-bit flash memory adapters : tsop32d, dip32a, plcc32a, tsop40a3, tsop40b2, psop44b2.
Use online chip database to find chip related adapter and high voltage method (A9) is supported. Main brands with chip high voltage support – AMD, Fujitsu, ST Micro, Amic, EON, Hynix .
The software hvasm.exe allow read chip ID and status, protect and unprotect flash memory sectors permanently. File readme.txt indicates latest SW version , supported and verified chips.
Chip ID and sectors status can be read with SW 0.97ja in Test H/W mode.

readme.txt
hvasm.exe
High voltage 8-bit flash memory sector protection and unprotection.
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Apply EZoFlash+ programmer, crossadapter prot_a1 and
8-bit flash memory adapter tsop32d, plcc32a1 or dip32a.
Keep package files in the same directory.

20.10.2005, version 0.1

Support flash memory sector protection and chip unprotection:
AMD - AM29F010, AM29F040,
Fujitsu - 29F040,
ST Micro - M29F010, M29W010, M29F040, M29W040
Texas Instr. - TMS29F040
All mentioned chips in different versions are verified.
Details find in chip_test file (v.13)

Software identify more chips with status read , sectors can be protected.
Unprotection algorythm unknown, follow the software message !!!
Use chip sector protection at your own risk !