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CHAPTER 28 3M-BIT FLASH MEMORY
[bit4] RDY (ready)
This bit enables flash memory write/erase.
Flash memory write/erase is disabled while this bit is "0".
However, Suspend commands, such as the Read/Reset command and Sector Erase Suspend command,
can be accepted even if this bit is "0".
•
"0": Write/erase is being executed.
•
"1": Write/erase has terminated (next data write/erase enabled).
[bit3 to bit0] Reserved bits
These bits are reserved for testing. During regular use, they should always be set to "0".
Note:
The RDYINT and RDY bits cannot be changed at the same time. Create a program so that decisions
are made using one or the other of these bits.
Automatic algorithm
T e rmination timing
RDYINT bit
RDY bit
562
Figure 28.4-2 Transitions of the RDYINT and RDY Bits
1 machine cycle
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