嵌入式系统词汇表 嵌入式系统词汇表 ASIC（专用集成电路） Application-Specific Integrated Circuit. A piece of custom-designed hardware in a chip. 专用集成电路。一个在一个芯片上定制设计的硬件。 address bus （地址总线） 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. 一个连接处理器与所有外设的， 用来通讯的电子线路集。 地址总线被处理器用来选择在特定 外设中的存储器地址或寄存器。 如果地址总线有 n 条电子线路， 处理器能唯一寻址高达 2^n 的地址空间。 application software（应用软件） Describes software modules specific to a particular embedded project. Theapplication software is unlikely to be reusable……