Note: The DO bit value is changed when the corresponding
mask bit is '0'
。
Processing method:
A= original DO value
B= DO value specified by AP
M= Mask value specified by AP
Result = ( A and M) or ( B and (not M) )
Example:
data #1 = 0x30('0'), data #2 = 0x30('0')
data #3 = 0x46('F'), data #4 = 0x46('F')
result = 0xFF -> ch0 ~ch7 all 'ON'
data #5 = 0x46('F'), data #6 = 0x46('F')
data #7 = Any value, data #8 = Any value
result = ch8 ~ ch15 no change