Motorola MVME2300 Series - Manual (Page 24)

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indicate that the bit is in the state that disables the function it controls. In
all tables, the terms 0 and 1 are used to describe the actual value that should
be written to the bit, or the value that it yields when read. The term status
bit is used to describe a bit in a register that reflects a specific condition.
The status bit can be read by software to determine operational or
exception conditions.