摘要：互操作性是一個系統經過很少甚至無需系統操作員介入而實現與其它系統協同工作的能力。系統的互操作性使其有可能為其它系統提供服務或接受其它系統的服務,使得不同廠商的系統能夠協同工作。本應用筆記介紹如何設置DS34S132 TDM-over-Packet (TDMoP) IC，使其與其它TDMoP器件實現互操作。 引言 毋庸諱言，當今的通信系統需要不同設備和設備之間的復雜交互。隨著技術的進步，互操作性也變得更加重要。互操作性是一個系統經過很少甚至無需系統操作員介入而實現與其它系統協同工作的能力。系統的互操作性使其有可能為其它系統提供服務或接受其它系統的服務，從而使不同廠商的系統能夠協同工作。 本應用筆記著重介紹Maxim TDM-over-Packet (TDMoP) IC，DS34S132。文章介紹了在DS34S132與其他廠商TDMoP器件之間實現互操作性的設置要求。
上傳時間： 2013-10-27
上傳用戶：angle
Designing Boards with Atmel AT89C51,AT89C52, AT89C1051, and AT89C2051 for Writing Flash at In-Circuit Test. Recent improvements in chips and testers have made it possible for the tester to begin taking over the role tradi-tionally assigned to the PROM program-mer. Instead of having a PROM pro- grammer write nonvolatile memories before assembling the board, the in-cir- cuit tester writes them during in-circuit testing operations. Many Teradyne Z18- series testers are now in use loading code into nonvolatile memories, micro- controllers and in-circuit programmable logic devices. The purpose of this note is to explain how the Z18 approaches the writing task for Atmel AT89C series IC’s, so that designers of boards using these chips can get the best results.
上傳時間： 2013-11-17
上傳用戶：xiaozhiqban
摘要：本文介紹了以PIC16C74單片機為核心的IC卡讀寫器的系統設計，系統實現了IC卡及外部存儲器的讀寫、PC機與單片機的串行通訊、硬件上實現了串口供電的工作方式，系統具有實用性強穩定性高等特點。 關鍵詞：PIC單片機；IC卡讀寫；串行通訊；串口供電
上傳時間： 2013-11-15
上傳用戶：z1191176801
將現行的供暖計費方式由按建筑面積計費變為按消耗的熱能計費是供暖計費方式發展趨勢，為了滿足這一計費方式變化的需要，設計了基于IC卡的預付費式新型供暖計費系統，通過測量用戶采暖系統進出口的溫度和流量，計算用戶消耗的熱能，利用IC卡記錄用戶預付費的金額和當年熱能的單價，根據熱能消耗和當年熱能的單價計算用戶采暖費，根據實際發生的供暖費用和預付費金額控制供暖的開停，這一計費方式的變化使供暖計費更趨合理。 Abstract: It is trend that the mode of heat charging is changed from billing by building area to by thermal energy. In order to meet the needs of heat charging mode changing， a new system of heat charging based on IC card is proposed. The user?蒺s energy consumption is calculated by measuring the user inlet and outlet temperature and flow，using the IC card to record the prepaid amount and the current price of heat. The user?蒺s heating costs is calculated according to energy consumption and current price， according to actual heating costs and prepaid amount，the system controls the heating opening or stopping. It is more reasonable that calculated heating costs by user heat consumption
上傳時間： 2013-10-14
上傳用戶：大融融rr
精通VerilogHDL：IC設計核心技術實例詳解
標簽： VerilogHDL IC設計 核心技術
上傳時間： 2013-11-11
上傳用戶：ve3344
本文詳細介紹了利用邏輯加密卡SLE4442 設計IC 卡保險箱(DEMO 板)的過程該保險箱是利用P87LPC764 做處理器另擴展1 片E2PROM 組成的應用系統該保險箱具有如下功能卡號自學習讀卡出錯計數和非法卡計數達到設定次數保險箱死鎖控制該保險箱有權限和功能不同3 種卡(1)用戶卡最終用戶開箱用權限最低(2)客戶卡分配用戶卡給指定的保險箱(3)超級卡用于死鎖后開箱用權限最高
上傳時間： 2013-10-09
上傳用戶：wang0123456789
HT45R3X系列觸控IC按鍵識別SWIP介紹 HOLTEK 用于觸控按鍵的IC 有：HT45R34、HT45R36、HT45R38 等。為了幫助使用者，在利用這些IC 開發項目時，省去重復編寫按鍵檢測程序的工作，我們特此寫出 SWIP，用于HT45R34，HT45R36，HT45R38 的觸摸按鍵檢測功能，使用者只需修改UserSet.inc 中的幾個參數，便可實現對HT45R34，HT45R36，HT45R38 的觸摸按鍵檢測功能。
上傳時間： 2013-11-19
上傳用戶：zjf3110
This document describes the system hardware implementation for the OMAP3530 processor and theTPS65930/20 companion power integrated circuit (IC). The document concentrates on the powerconnectivity for the processor and the companion power IC. The document also briefly explains someother specifics related to power, such as the boot modes and the power-up sequence.
上傳時間： 2013-11-14
上傳用戶：yeling1919
This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Appendices have example code for the 16C662 (with comparator) and 16F877 (using the ADC). As the majority of the Digital Signal Processing is done in software, little is required in the way of external signal conditioning. Software techniques are used to model the individual elements of a DTMF Decoder IC.
上傳時間： 2013-11-21
上傳用戶：zhaoke2005
針對目前主流的Philips 公司Mifare1 卡，提出了一套基于單片機和VFP9.0 的IC卡管理系統設計方案，給出了整體設計及編程思路，并對其中的技術細節做了詳細說明。
上傳時間： 2013-12-28
上傳用戶：chaisz
