{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","id":"38270854-596f-4a26-8183-db8c968c6020","uuid":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","normalized_title":"编码隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","isbns":["9787121181184","0123456789","6044921875","3039331000","0000000000","0000000000000"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":438,"navigation_url":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020","title_url":"https://workshop.closeclaw.top/ai/title/%E7%BC%96%E7%A0%81%20%E9%9A%90%E5%8C%BF%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%BD%AF%E7%A1%AC%E4%BB%B6%E8%83%8C%E5%90%8E%E7%9A%84%E8%AF%AD%E8%A8%80","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/38270854-596f-4a26-8183-db8c968c6020","page_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/page","search_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/search"},"page":{"printed_page":177,"pdf_page":193,"physical_index":193,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"2220c11aeffa65c8e70b04be2e18d22bdb16ffb6a8dce06c3bb012896b7254b5"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"边沿触发的D型触发器是由两级R-S触发器按如下方式连接而成的。\n\n这里，时钟端的输入既控制着第一级 R-S触发器，也控制着第二级，但是要注意的是时钟信号在第一级中进行了取反操作，这意味着除了当时钟信号为0时保存数据外，第一级R-S 触发器和D型触发器工作原理完全一致。第二级R-S 触发器的输出是第一级的输入，当时钟信号为1时，它们都被保存。一言概之，只有当时钟信号由0变为1时，数据端输入才被保存下来。\n\n进一步分析，下图为一个处于非工作状态的触发器，其数据输入和时钟输入均为0，且Q输出也为0。\n\n14 反馈与触发器\n\n177","previous_page":176,"next_page":178}