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java.lang.Object avrora.sim.mcu.RegisterSet.MultiFieldRegister
The Register
class implements an IO register that is
directly read and written by the program. This IO register implements writes
that alter multiple fields and subfields in the register set.
Method Summary | |
byte |
read()
The read() method reads the 8-bit value of the IO register as a byte. |
boolean |
readBit(int bit)
The readBit() method reads a single bit from the IO register. |
void |
write(byte nval)
The write() method writes an 8-bit value to the IO register as a byte. |
void |
writeBit(int bit,
boolean val)
The writeBit() method writes a single bit value into the IO register at the specified
bit offset. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
public byte read()
ActiveRegister
read()
method reads the 8-bit value of the IO register as a byte. For special IO
registers, this may cause some action like device activity, or the actual value of the register may
need to be fetched or computed.
read
in interface ActiveRegister
public boolean readBit(int bit)
ActiveRegister
readBit()
method reads a single bit from the IO register.
readBit
in interface ActiveRegister
bit
- the number of the bit to read
public void write(byte nval)
ActiveRegister
write()
method writes an 8-bit value to the IO register as a byte. For special IO
registers, this may cause some action like device activity, masking/unmasking of interrupts, etc.
write
in interface ActiveRegister
nval
- the value to writepublic void writeBit(int bit, boolean val)
ActiveRegister
writeBit()
method writes a single bit value into the IO register at the specified
bit offset.
writeBit
in interface ActiveRegister
bit
- the number of the bit to writeval
- the value of the bit to write
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