A dedicated processor that unburdens the central microcomputer by quickly performing such functions as arithmetic, logarithmic, trigonometric, fast Fourier transform, and floating-point calculations.

• 一种专用处理器，能快速完成下列操作：算术运算、对数运算、三角函数计算、快速傅里叶变换以及浮点运算，从而减轻了中央微计算机的负担。