
6
INTERNAL MEMORY
6-38
32185/32186 Group Hardware Manual
Rev.1.10 REJ09B0235-0110 May 15, 07
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Write the Verify command (H'D0D0)
to the last even address of the flash
memory block to be protected
Write the Lock Bit Program command
(H'7777) to any address of the
internal flash memory
Lock bit is programmed
by Lock Bit Program
Wait for 1 s
(using a hardware or software timer)
FBUSY bit = 1
TIME OUT?
YES
NO
Forcibly terminated
YES
NO
Confirm the result of execution
of the programming process
(Note 1)
Note 1: Check Flash Status Register (FSTAT) ERASE bit (for the erase status) and WRERR bit (for the write status).
1600
s (Note 2)
Note 2:
It is a timeout period for 4-Kbyte block. The timeout period for other than 4 Kbytes is 800 s.
Figure 6.6.10 Lock Bit Program
6.6 Programming Internal Flash Memory