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15.12 SECURITY CONTROL (OPTION)
Address of register
：
00C3H ----- REGISTER OF NEW SECURITY CODE
=======================================================================
Command/Return
：
(READ/WRITE)
YYYYH-->New security code
Address of register
：
00C4H ----- REGISTER OF OLD SECURITY CODE
=======================================================================
Command/Return
：
(READ/WRITE)
YYYYH--> OLD SECURITY CODE
Address of register
：
00C5H ----- SET SECURITY MODE REGISTER
=======================================================================
Command/Return
：
(READ/WRITE)
0000H-->normal
0001H-->unlock
0002H-->error
0003H-->lock, if unlock error consecutively more than 10 times
0004H-->set password
