TMS320C542 2K-Word 10K-Word Program Program IEEE 1149.1 Std 功能框 ROM Data RAM Test/EMU A(15-0) Autobuffered Serial Port D(15-0) TDM MAC ALU Serial Port 1717 MPY 40-Bit ALU Timer 40-Bit Adder CMPS Operator Round, Saturate(Viterbi Accelerator)I Software Vait-State EXP Encoder Generator Shifter Accumulators PLL Clock 40-Bit Barrel 40-Bit ACC A Generator (-16,31) opt.1:x1,1.5,2,3 40-Bit ACC B opt2:X1,4,4.5, Addressing Unit Host Port Interface 8 Auxiliary Registers (LC542 Only) 2 Addressing Units Note: The ' LC542 and'LC543 are available with one of two different PLL options You choose one of the options listedTMS320C542 功能框图