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java.lang.Object avrora.sim.mcu.ATMegaFamily.PinRegister
The PinRegister
class implements an active register that acts as the
read register (input register) for the general purpose IO pins.
Field Summary | |
protected AtmelMicrocontroller.Pin[] |
pins
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Constructor Summary | |
protected |
ATMegaFamily.PinRegister(AtmelMicrocontroller.Pin[] p)
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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 val)
The write() method writes an 8-bit value to the IO register as a byte. |
void |
writeBit(int num,
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 |
Field Detail |
protected AtmelMicrocontroller.Pin[] pins
Constructor Detail |
protected ATMegaFamily.PinRegister(AtmelMicrocontroller.Pin[] p)
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 val)
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
val
- the value to writepublic void writeBit(int num, boolean val)
ActiveRegister
writeBit()
method writes a single bit value into the IO register at the specified
bit offset.
writeBit
in interface ActiveRegister
num
- the number of the bit to writeval
- the value of the bit to write
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