The P89LPC938 is a single-chip microcontroller, available in low cost packages, based on
a high performance processor architecture that executes instructions in two to four clocks,
six times the rate of standard 80C51 devices. Many system-level functions have been
incorporated into the P89LPC938 in order to reduce component count, board space, and
system cost.
Single Carrier FDMA又稱SC-FDMA或者DFT-Spread-OFDM是3GPP LTE最新提出的適用于上行傳輸的一種新方案。相對于OFDMA（主要用于下行），其最大的優勢在于低峰值平均功率比（即PAPR）。本程序包括OFDMA，SC-FDE（單載波頻域均衡）以及SC-FDMA程序，接收端采用經典的ZF和MMSE檢測算法，程序短小精悍，相當經典，方便該領域的人學習與研究。
This specification defines the Audio Codec ‘97 (AC ‘97) Architecture and Digital Interface (AC-link) specifically
designed for implementing audio and modem I/O functionality in mainstream PC systems. This specification does
not explicitly define the companion AC ‘97 Digital Controller component (sometimes referred to or abbreviated as
DC ‘97), which typically varies in features and implementation, but is AC ‘97 compliant with this specification.
