    uint8_t ram_mode;
    if ((rotation^m_rotation) & 0x01)
    {
        m_base.swapDimensions();
    }
    m_rotation = (rotation & 0x03);
    this->start();
    spiDataMode(0);
    this->send(0x28);
    this->send(0x36);
    spiDataMode(1);
    switch (m_rotation)
    {
    case 0:
        ram_mode = 0b00000000;
        break;
    case 1: // 90 degree CW
        ram_mode = 0b01100000;
        break;
    case 2: // 180 degree CW
        ram_mode = 0b11000000;
        break;
    default: // 270 degree CW
        ram_mode = 0b10100000;
        break;
    }
    this->send( ram_mode | m_rgb_bit );
    spiDataMode(0);
    this->send(0x29);
    this->stop();
