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%94/1394a-%eb%9e%98%ec%b9%98-%ec%bc%80%ec%9d%b4%eb%b8%94/