{"id":4848,"date":"2025-10-30T11:00:00","date_gmt":"2025-10-30T02:00:00","guid":{"rendered":"https:\/\/www.ramxeed.com\/jp\/?post_type=column&p=4848"},"modified":"2026-01-05T10:58:05","modified_gmt":"2026-01-05T01:58:05","slug":"analog-asic-serial-interface-basics","status":"publish","type":"column","link":"https:\/\/www.ramxeed.com\/jp\/tech-column\/analog-asic-serial-interface-basics\/","title":{"rendered":"\u30a2\u30ca\u30ed\u30b0ASIC \u306b\u304a\u3051\u308b\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u8a2d\u8a08\u306e\u57fa\u790e\u3068\u8981\u70b9"},"content":{"rendered":"\n

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\u30a2\u30ca\u30ed\u30b0ASIC\u306e\u57fa\u790e\u3068\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u4f4d\u7f6e\u4ed8\u3051<\/strong><\/h2>\n\n\n\n

\u30a2\u30ca\u30ed\u30b0ASIC\u306f\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u88fd\u54c1\u8981\u4ef6\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u30a2\u30ca\u30ed\u30b0\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u306e\u30ab\u30b9\u30bf\u30e0IC\u3067\u3059\u3002\u7279\u306b\u30bb\u30f3\u30b5\u4fe1\u53f7\u306e\u53d6\u308a\u6271\u3044\u3084\u96fb\u6e90\u5236\u5fa1\u3001\u30a2\u30ca\u30ed\u30b0\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u51e6\u7406\u306a\u3069\u3001\u9ad8\u5ea6\u306a\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u51e6\u7406\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u9762\u3067\u6d3b\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u30a2\u30ca\u30ed\u30b0ASIC\u306b\u304a\u3044\u3066\u3001\u5916\u90e8\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u901a\u4fe1\u3092\u52b9\u7387\u5316\u3059\u308b\u624b\u6bb5\u3068\u3057\u3066\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u8a2d\u8a08\u306f\u6975\u3081\u3066\u91cd\u8981\u306a\u69cb\u6210\u8981\u7d20\u3068\u306a\u308a\u307e\u3059\u3002I\/O\u30d4\u30f3\u6570\u306e\u524a\u6e1b\u3001\u7701\u30b9\u30da\u30fc\u30b9\u5316\u3001\u8a2d\u8a08\u306e\u67d4\u8edf\u6027\u78ba\u4fdd\u3068\u3044\u3063\u305f\u89b3\u70b9\u304b\u3089\u3082\u3001\u305d\u306e\u5f79\u5272\u306f\u307e\u3059\u307e\u3059\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u30a2\u30ca\u30ed\u30b0ASIC\u3068\u306f\u4f55\u304b \u2014 \u5b9a\u7fa9\u3068\u7528\u9014<\/strong><\/h3>\n\n\n\n

\u30a2\u30ca\u30ed\u30b0ASIC\uff08Application Specific Integrated Circuit\uff09\u306f\u3001\u6c4e\u7528IC\u3068\u306f\u7570\u306a\u308a\u3001\u7279\u5b9a\u7528\u9014\u306b\u5408\u308f\u305b\u3066\u8a2d\u8a08\u3055\u308c\u308b\u30a2\u30ca\u30ed\u30b0\u96c6\u7a4d\u56de\u8def\u3067\u3059\u3002\u30bb\u30f3\u30b5\u4fe1\u53f7\u306e\u524d\u51e6\u7406\u3084\u96fb\u6e90\u5236\u5fa1\u3001\u30e2\u30fc\u30bf\u30fc\u30c9\u30e9\u30a4\u30d0\u3001\u901a\u4fe1\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u30a2\u30ca\u30ed\u30b0\u90e8\u5206\u306a\u3069\u3001\u9ad8\u7cbe\u5ea6\u306a\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u5236\u5fa1\u304c\u8981\u6c42\u3055\u308c\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u88fd\u54c1\u3054\u3068\u306e\u4ed5\u69d8\u306b\u5408\u308f\u305b\u3066\u6a5f\u80fd\u3092\u6700\u9069\u5316\u3067\u304d\u308b\u305f\u3081\u3001\u6027\u80fd\u30fb\u6d88\u8cbb\u96fb\u529b\u30fb\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u512a\u308c\u305f\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u30d6\u30ed\u30c3\u30af\u3068\u306e\u6df7\u8f09\u306b\u3088\u308a\u3001\u30d5\u30eb\u30ab\u30b9\u30bf\u30e0\u306aSoC\u306b\u8fd1\u3044\u69cb\u6210\u3082\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3068\u306f \u2014 SPI\uff0fI\u00b2C\uff0f\u305d\u306e\u4ed6\u30d7\u30ed\u30c8\u30b3\u30eb\u6982\u8981<\/strong><\/h3>\n\n\n\n

\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u56de\u8def\u9593\u3067\u306e\u30c7\u30fc\u30bf\u901a\u4fe1\u3092\u6570\u672c\u306e\u4fe1\u53f7\u7dda\u3067\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u901a\u4fe1\u65b9\u5f0f\u3067\u3059\u3002\u4ee3\u8868\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u306fSPI\uff08Serial Peripheral Interface\uff09\u3001I\u00b2C\uff08Inter-Integrated Circuit\uff09\u3001UART\uff08Universal Asynchronous Receiver\/Transmitter\uff09\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306bSPI\u306f\u9ad8\u901f\u30fb\u5168\u4e8c\u91cd\u901a\u4fe1\u304c\u53ef\u80fd\u3067\u3001\u30a2\u30ca\u30ed\u30b0ASIC\u306b\u7d44\u307f\u8fbc\u307e\u308c\u308b\u5236\u5fa1\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3068\u3057\u3066\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002I\u00b2C\u306f\u4f4e\u901f\u3067\u3059\u304c\u30c7\u30d0\u30a4\u30b9\u6570\u304c\u591a\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u6709\u5229\u3067\u3059\u3002\u8a2d\u8a08\u6642\u306b\u306f\u901a\u4fe1\u901f\u5ea6\u3001\u30d0\u30b9\u5360\u6709\u6642\u9593\u3001\u30ce\u30a4\u30ba\u8010\u6027\u306a\u3069\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u9078\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\u30a2\u30ca\u30ed\u30b0ASIC\u306b\u304a\u3051\u308b\u30b7\u30ea\u30a2\u30ebI\/F\u3092\u63a1\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8<\/strong><\/h3>\n\n\n\n

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\u8a2d\u8a08\u4e0a\u8003\u616e\u3059\u3079\u304d\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u6280\u8853\u8981\u4ef6<\/strong><\/h2>\n\n\n\n

\u30a2\u30ca\u30ed\u30b0ASIC\u306b\u304a\u3051\u308b\u30b7\u30ea\u30a2\u30eb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u8a2d\u8a08\u3067\u306f\u3001\u4fe1\u53f7\u306e\u6574\u5408\u6027\u3084\u30ce\u30a4\u30ba\u8010\u6027\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u5b89\u5b9a\u6027\u3068\u3044\u3063\u305f\u8907\u5408\u7684\u306a\u8981\u7d20\u3092\u9ad8\u5ea6\u306b\u30d0\u30e9\u30f3\u30b9\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u3068\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u304c\u6df7\u5728\u3059\u308b\u74b0\u5883\u3067\u306f\u3001\u5e72\u6e09\u306b\u3088\u308b\u8aa4\u52d5\u4f5c\u3092\u9632\u3050\u305f\u3081\u306e\u914d\u616e\u304c\u5fc5\u9808\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u96fb\u6e90\u30ce\u30a4\u30ba\u3084\u30b0\u30e9\u30f3\u30c9\u30d0\u30a6\u30f3\u30b9\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306b\u304f\u3044\u8a2d\u8a08\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u306f\u3001\u30c8\u30dd\u30ed\u30b8\u30fc\u8a2d\u8a08\u304b\u3089\u4fe1\u53f7\u6574\u5f62\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u914d\u7f6e\u307e\u3067\u3001\u4e00\u8cab\u3057\u305f\u54c1\u8cea\u7ba1\u7406\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n

\u4fe1\u53f7\u54c1\u8cea\u30fb\u30af\u30ed\u30c3\u30af\u30fb\u30bf\u30a4\u30df\u30f3\u30b0\u8a2d\u8a08\u306e\u30dd\u30a4\u30f3\u30c8<\/strong><\/h3>\n\n\n\n

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\u30ce\u30a4\u30ba\u30fb\u5e72\u6e09\u30fb\u30a2\u30ca\u30ed\u30b0\u56de\u8def\u6df7\u8f09\u6642\u306e\u6ce8\u610f\u70b9<\/strong><\/h3>\n\n\n\n

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