protected function getNibbleWithControl($nibbleType, $nibble)
    {
        $dec = bindec($nibble);

        if ($dec > 9) {
            $dec -= 9;
            $control = self::NIBBLE_CONTROL[$nibbleType][1];
        } else {
            $control = self::NIBBLE_CONTROL[$nibbleType][0];
        }

        return $control.sprintf('%04d', decbin($dec));
    }