https://ko.donghootech.com/%ec%a0%9c%ed%92%88/%eb%b9%84%ec%a0%84-%ec%bc%80%ec%9d%b4%eb%b8%94/ieee-1394-firewire-%ec%bc%80%ec%9d%b4%eb%b8%94/1394b-9%ed%95%80-%eb%82%b4%eb%b6%80-%eb%82%98%ec%82%ac-%ec%bc%80%ec%9d%b4%eb%b8%94/