No.83872
作者：521MCU
邮件：5563263@163.com
ID：41999
登陆：1次
文章数：4篇
最后登陆IP：210.82.111.154
最后登陆：2005/9/20 9:58:15
注册：2005/9/20 9:23:47
财富：130
发帖时间：2005/9/20 9:57:14
发贴者IP：210.82.111.154
标题：521MCU:嵌入式系统词汇表㈡
摘要：No.83872嵌入式系统词汇表㈡ ICE
In-Circuit Emulator. See emulator.
在线仿真器。查阅仿真器。
I/O（输入/输出）
Input/Output. The interface between a processor and the world around it. The
simplest examples are switches (inputs) and LEDs (outputs).
输入/输出。处理器与外界的交互界面。最简单的例子是开关（输入）和发光二级管（输出）。
I/O device（IO设备）
A piece of hardware that interfaces between the processor and the outside wo
rld. Common examples are switches and LEDs, serial ports, and network contro
llers.
一种介于处理器和外界之间的硬件设备。一般的实例是开关、LED、串口和网络控制器。
I/O map（I/O映射）
A table or diagram containing the name and address range of each peripheral
addressable by the processor within the I/O space. I/O maps are a helpful ai
d in getting to know the target.
一张包含每个外设的名字和地址的表格或图表，可由处理器在I/O空间中设定地址。I/O映射对得知目标机情况非常有利。
I/O space（I/O空间）
A special memory region provided by some processors and generally reserved f
or the attachment of I/O devices. Memory locations and registers within an I
/O space can be accessed only via special instructions. For example, process
ors in the 80x86 family have special I/O space instructions called in and ou
t. Contrast with memory space.
一个由处理器提供的特殊内存区域，一般为为I/O设备的附件保留。在I/O空间的内存位置和寄存器只能通过特殊的指定进行访问。例如：80X86家族的处理器有叫做in / out的特殊的I/O空间指令。相对内存空间而言。
ISR（中断服务程序）
See interrupt service routine.
instruction pointer（指令指针）
A register in the processor that contains the address of the next instructio
n to be executed. Also known as a program counter.
包含下一条要执行指令地址的处理器中的寄存器。也叫程序计数器。
Interrupt（中断）
An asynchronous electrical signal from a peripheral to the processor. When t
he peripheral asserts this signal, we say that an interrupt occurs. When an
interrupt occurs, the current state of the processor is saved and an interru
pt service routine is executed. When the interrupt service routine exits, co
ntrol of the processor is returned to whatever part of the software was prev
iously running.
一个从外设到处理器的异步电信号。当外设发出这个信号，我们说一个中断发生。当一
个中断发生，当前的处理器状态被保存并且中断服务程序开始运行。当中断服务程序退出，对处理器的控制权转到先前运行的那个软件上。
interrupt latency（中断延迟）
The amount of time between the assertion of an interrupt and the start of th
e associated interrupt service routine.
在中断发生和相关的中断服务程序运行之间的时间长短。
interrupt service routine（中断服务程序）
A piece of software executed in response to a particular interrupt.
响应特定中断而运行的一小段软件。
interrupt type（中断类型）
A unique number associated with each interrupt.
和每一个中断相关联的唯一数字。
interrupt vector （中断向量）
The address of an interrupt service routine.
中断服务程序所在的地址。
interrupt vector table（中断向量表）
A table containing interrupt vectors and indexed by interrupt type. This tab
le contains the processor"s mapping between interrupts and interrupt service
routines and must be initialized by the programmer.
一个表格，包含由中断类型决定的中断向量和索引。这个表格包含中断与中断服务程序之间的处理器的映射，必须由程序员进行初始化。
intertask communication（进程间通讯）
A mechanism used by tasks and interrupt service routines to share informatio
n and synchronize their access to shared resources. The most common building
blocks of intertask communication are semaphores and mutexes.
一种被用来在任务和中断服务程序之间共享信息和同步它们对共享资源访问的机制。大部分进程间通讯的建立的基石是信号灯和互斥。
K
Kernel（内核）
An essential part of any multitasking operating system, the kernel contains
just the scheduler and context-switch routine.
任何多任务操作系统的本质部分，内核仅仅包含调度程序和上下文切换进程。
L
Linker（连接程序）
A software development tool that accepts one or more object files as input a
nd outputs a relocatable program. The linker is thus run after all of the so
urce files have been compiled or assembled.
一种能把一个或更多目标文件组合成可输入和输出的可重定位程序的开发工具。连接程序在所有的源文件都被编译或汇编之后运行。
Locator（定位程序）
A software development tool that assigns physical addresses to the relocatab
le program produced by the linker. This is the last step in the preparation
of software for execution by an embedded system and the resu ......
>>返回讨论的主题
|
导航: 老古网→ 老古论坛→XMOS公共讨论区→XMOS开源项目区→单片机程序设计→嵌入式系统→广告区域→