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## avrora.sim.mcu
Class USART.DataRegister

    java.lang.Object
      avrora.sim.RWRegister
          avrora.sim.mcu.USART.DataRegister

All Implemented Interfaces:
  ActiveRegister

Enclosing class:
  USART

protected class USART.DataRegister
extends RWRegister

The `DataRegister` class represents a Transmit Data Buffer Register for a USART. It is really two registers, a transmit register and a receive register. The transmit register is the destination of data written to the register at this address. The receive register is the source of data read from this address.

Field Summary

Fields inherited from class avrora.sim.RWRegister
`value`

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 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

### write

    public void write(byte val)

  Description copied from class: `RWRegister`
  The `write()` method writes an 8-bit value to the IO register as a byte. For simple `RWRegister` instances, this simply writes the internally stored value.

  Specified by:
    `write` in interface `ActiveRegister`
  Overrides:
    `write` in class `RWRegister`
  Parameters:
    `val` - the value to write

### writeBit

    public void writeBit(int bit,
                         boolean val)

  Description copied from class: `RWRegister`
  The `writeBit()` method writes a single bit value into the IO register at the specified bit offset. For simple `RWRegister` instances, this simply updates the bit in the internally stored value

  Specified by:
    `writeBit` in interface `ActiveRegister`
  Overrides:
    `writeBit` in class `RWRegister`
  Parameters:
    `bit` - the number of the bit to write
    `val` - the value of the bit to write

### read

    public byte read()

  Description copied from class: `RWRegister`
  The `read()` method reads the 8-bit value of the IO register as a byte. For simple `RWRegister` instances, this simply returns the internally stored value.

  Specified by:
    `read` in interface `ActiveRegister`
  Overrides:
    `read` in class `RWRegister`
  Returns:
    the value of the register as a byte

### readBit

    public boolean readBit(int bit)

  Description copied from class: `RWRegister`
  The `readBit()` method reads a single bit from the IO register.

  Specified by:
    `readBit` in interface `ActiveRegister`
  Overrides:
    `readBit` in class `RWRegister`
  Parameters:
    `bit` - the number of the bit to read
  Returns:
    the value of the bit as a boolean

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