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CHAPTER 1 OVERVIEW
●
Flash security Function
The security bit is located in the area of the flash memory.
If protection code 01
H
is written in the security bit, the flash memory is in the protected state by
security.
Therefore please do not write 01
H
in this address if you do not use the security function.
Please refer to following table for the address of the security bit.
●
For the diversion of MB90340-series software assets
In programming of the MB90360 series, keep the following points in mind for the diversion of
MB90340-series software assets in particular.
• Access to the registers which do not exist in the MB90360 series.
As for the registers and bits which exist in MB90340 series but not in the MB90360 series, do
not access them or ensure that the initial value is set. Setting any other value than the initial
value may cause an abnormal operation in emulation using MB90V340.
• Setting of the external interrupt factor select register (EISSR).
The MB90360 series is not equipped with the external interrupt request input, INT8R, INT9,
INT10, INT11, INT12, INT13, INT14 and INT15.
Enabling unequipped terminals causes a false operation. First set the EISSR and then set
each of the registers when DTP/external interrupt is used.
Flash memory size Address of security bit
MB90F362/T(S),
MB90F367/T(S)
Embedded 512Kbit flash memory FF0001
H