The utility model relates to a semiconductor integrated circuit, which belongs to the field of semiconductor, in particular to an improvement of a semiconductor integrated circuit structure, and is used as the main component of a Bluetooth communication system. The invention provides a semiconductor integrated circuit which can reduce the size of a chip and a module and can rewrite the corrected data when the characteristics of the electronic component are changed during use. It is characterized in that the invention includes a non-volatile memory, baseband processing circuit, CPU, CPU register, D / A converter and ROM mask; the central processor CPU is used to control the whole system, D / A converter respectively and the choice of the code is high or low, the selected code is low register and connected to the selected code is high and the nonvolatile memory is connected; the mask ROM as an external device connected to the external terminal of P1, the external terminal is connected with the internal bus P1.
【技术实现步骤摘要】
【技术保护点】
一种半导体集成电路，其特征在于，包括非易失存储器、基带处理电路、中央处理器ＣＰＵ、寄存器、Ｄ／Ａ转换器及掩模ＲＯＭ；中央处理器ＣＰＵ用于对整个系统进行控制，Ｄ／Ａ转换器分别与选择的代码的较高位和较低位相连，所选择的代码的较低位与寄存器相连，所选择的代码的较高位与非易失存储器相连；掩模ＲＯＭ作为外部器件，连接到外部端子Ｐ１上，外部端子Ｐ１与内部总线相连。
【技术特征摘要】
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