Setting The Flash Memory To Read/Reset State - Fujitsu F2MC-16LX Hardware Manual

CHAPTER 26 2M BIT FLASH MEMORY

26.6.1 Setting the Flash Memory to Read/Reset State

This section describes the procedures for issuing read/reset commands and setting
the flash memory state to read/reset.
I Setting the flash memory to the read/reset state
To set the flash memory to the read/reset state, continuously send the read/reset command in
the command sequence table (see Table 26.4-1 "Command sequence table") to the relevant
sector in the flash memory.
Read/reset commands use two types of command sequences: execution in one bus operation
and execution in three bus operations.
sequences.
The read/reset state is the initial state of the flash memory. It occurs at power-on or at normal
end of a command. The read/reset state is a state in which the device waits for input of other
commands.
The read/reset state enables data to be read with normal read accesses. Program access from
the CPU is performed in the same way that it is for mask ROM. However, this command does
not require that a data read operation end normally: This command is mainly used to initialize
the automatic algorithm if a command does not end for some reason.
484
There are no basic differences in between command