ASIC(專(zhuān)用集成電路) Application-Specific Integrated Circuit. A piece of custom-designed hardware in a chip. 專(zhuān)用集成電路。一個(gè)在一個(gè)芯片上定制設計的硬件。
address bus (地址總線(xiàn)) A set of electrical lines connected to the processor and all of the peripherals withwhich itcommunicates. The address bus is used by the processor to select aspecific memory location or register within a particular peripheral. If the address bus contains n electrical lines, the processor can uniquely address up to 2^n such locations. 一個(gè)連接處理器與所有外設的,用來(lái)通訊的電子線(xiàn)路集。地址總線(xiàn)被處理器用來(lái)選擇在特定外設中的存儲器地址或寄存器。如果地址總線(xiàn)有n條電子線(xiàn)路,處理器能唯一尋址高達2^n的地址空間。
application software(應用軟件) Describes software modules specific to a particular embedded project. Theapplication software is unlikely to be reusable across embedded platforms, simplybecause each embedded system has a different application.
assembler(匯編編譯器) A software development tool that translates human-readable assembly languageprograms into machine-language instructions that the processor can understandand execute. 一個(gè)能把人可讀的匯編語(yǔ)言程序轉換到處理器可理解和運行的機器指令的軟件開(kāi)發(fā)工具。
assembly language(匯編語(yǔ)言) A human-readable form of a processor"s instruction set. Most processor-specific functions must be written in assembly language. 一種人可讀的處理器指令集的形式。大多數處理器相關(guān)的功能必須用匯編語(yǔ)言編寫(xiě)。
B BSP(板卡支持包) See board support package. 見(jiàn)board support package。
binary semaphore(二元信號) A type of semaphore with just two states. Also called a mutex. 一種只有兩種狀態(tài)的信號。也叫互斥信號。
board support package(板卡支持包) Part of a software package that is processor or platform-dependent. Typically,sample source code for the board support package is provided by the package developer. The sample code must be modified as necessary, compiled, and linked with the remainder of the software package. 軟件包的具有平臺依賴(lài)性的那一部分。典型地,板卡支持包的樣例源程序由包開(kāi)發(fā)者提供。樣例源程序必須能在需要時(shí)被修改、編譯并與軟件包的剩下的部分連接起來(lái)。
bond-out processor (外合處理器) A special version of a processor that has some of the internal signals brought out to external pins. A bond-out processor is most often found within an emulator and is never intended to be used in a production system. 一種特殊版本的處理器,它有一些,內部的信號能傳達到外置的針腳上。一個(gè)外合處理器絕大多數情況下只用在模擬器上,從來(lái)不會(huì )被特意用在產(chǎn)品系統上。
Breakpoint (斷點(diǎn)) A location in a program at which execution is to be stopped and control of the processor switched to the debugger. Mechanisms for creating and removing breakpoints are provided by most debugging tools. 一個(gè)在程序中的地址,在那里程序的執行被停止,并且處理器的控制轉換到了除錯程序。大多數除錯工具提供增加與刪除一個(gè)斷點(diǎn)的機制。
C CISC(復雜指令集計算機) Complex Instruction Set Computer. Describes the architecture of a processor family. CISC processors generally feature variable-length instructions, multiple addressing formats, and contain only a small number of general-purpose registers. Intel"s 80x86 family is the quintessential example of CISC. Contrast with RISC. <<容~源~電~子~網(wǎng)~版權聲明:本站內容部分來(lái)源于網(wǎng)絡(luò ),如侵犯到你的權利請及時(shí)與我們聯(lián)系更正,聯(lián)系QQ:316520686。