Unlock Bypass Program - Fujitsu 8FX Hardware Manual

CHAPTER 26 DUAL OPERATION FLASH MEMORY
26.5 Programming/Erasing Flash Memory
26.5.7

Unlock Bypass Program

This sections explains details of the unlock bypass state.
■ Transiting from Normal Command State to Unlock Bypass State
If an unlock bypass program command is input in the normal command state, the Flash
memory will transit to the unlock bypass state. In this state, a program command can be
executed if the command is input within two cycles as mentioned in Table 26.3-1.
■ Returning from Unlock Bypass State to Normal Command State
If an unlock bypass reset command is input in the unlock bypass state, the Flash memory will
return to the normal command state from the unlock bypass state. In addition, executing a
hardware reset in the unlock bypass state will also make Flash memory return to the normal
command state.
558 FUJITSU SEMICONDUCTOR LIMITED
MB95630H Series
MN702-00009-2v0-E