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本文研究并开发了一款针对手持设备、内嵌ARM7TDMI内核的系统芯片。在设计这款芯片的过程中,MP3算法的软硬件分割和芯片的低功耗设计是主要挑战。本文介绍了该系统芯片的结构,并着重介绍了软硬件分割和低功耗设计技术。
This article studies and develops a system-on-chip ARM7TDMI core for handheld devices. In the process of designing this chip, MP3 algorithm hardware and software segmentation and chip low-power design is the main challenge. This article describes the structure of the system chip, and highlights the hardware and software segmentation and low-power design techniques.