臺灣博碩士論文加值系統

由於低腳數記憶卡(Low Ping Count Card)具有可攜性高、體積小和耗電量低等優點，目前市面上越來越多的手機、數位相機以及個人數位助理等可攜式裝置，都選擇以低腳數記憶卡做為擴充儲存媒體。例如，只有郵票般大小的保密數位記憶卡(secure digital memory card，簡稱 SD memory card)，便是低腳數記憶卡的一種。為了讓內建低腳數記憶卡插槽的裝置能有更多元化的功能，而不只是單單用來增加記憶媒體，新一代的標準：保密數位輸入輸出卡(secure digital I/O card)便是一個很好的答案，我們可以透過保密數位輸入輸出卡來結合各個不同功能的模組，例如結合全球定位系統、MP3隨身聽或藍芽模組等，來擁有不同的延伸功能。在這篇論文，我們設計並實現了一個符合保密數位規格，並且俱備有連結金氧半影像感測器(CMOS image sensor)介面的輸入輸出卡，整個輸入輸出卡模組便可當成是一個基本的數位相機來使用。論文中，我們首先將保密數位卡的規格以及功能做簡單而扼要的介紹，接著，我們說明了在主端控制器方面所採用的影像插補演算法，當整個輸入輸出卡系統完成後，我們利用8051單晶片來模擬主端控制器的動作，而8051單晶片會將所收到的回應以及資料傳回電腦，我們便可從接收的資料和規格書來做比對，驗證我們所設計的輸入輸出卡是否是正確無誤的。論文的最後提出結論，以及未來可以進一步做的研究與仍需改進的部分。

In this thesis, we implement an SD I/O imaging card module that supports SD-mode interface to the host and the interface with a CMOS image sensor. We have successfully combined the SD I/O imaging card with the CMOS image sensor. This SD I/O imaging card system can take in pictures by its image sensor and send back the pictures taken to the host via SD bus. From the simulation results, we see that the function of the SD I/O imaging card we implemented can work accurately.

Abstract
Contents
1 Introduction
2 SD I/O card controller module
2.1 SDIO card communication modes
2.2 I/O card initialization
2.3 Read write operation
2.4 Cyclic redundancy check
2.5 Interrupts
2.6 Read wait opeartion
2.7 Suspend/Resume operation
3 Image sensor module
3.1 Overview of image sensor
3.2 Image processing
3.3 Windowing
3.4 SCCB interface
4 Implementation
4.1 Architecture of the SD I/O imaging card controller
4.2 Simulation
4.3 Testing
5 Conclusion
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