def forceWrite(this, key, val):
    """
        Always writes through to MBUS
        """
    this.log.debug('fored-write: ' + str(key) + ':' + str(val))
    addr = key[0]
    size = key[1]
    assert isinstance(addr, int)
    assert isinstance(val, int)
    this.mbus.write_mem(addr, val, size)
