TMS320C54ｘ片内的多总线结构，允许在一个机器周期内通过两个16位数据总线（C总线和D总线）寻址两个数据和系数。双操作数指令是用间接寻址方式获得操作数的，并且只能用AR2到AR5的辅助寄存器。双操作数指令占用较少的程序空间，而获得更快的运行速度。-TMS320C54x Chip multi-bus architecture, which allows a single machine cycle through two 16-bit data bus (C bus and D bus) addressing both data and coefficients. Two-operand instructions are obtained using indirect addressing operands, and only use the auxiliary register AR2 to AR5. Two-operand instructions of the program takes up less space, and access to a faster speed.