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C167CS-4RM датащи(PDF) 19 Page - Infineon Technologies AG |
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C167CS-4RM датащи(HTML) 19 Page - Infineon Technologies AG |
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19 / 517 page ![]() C167CS Derivatives Architectural Overview User’s Manual 2-2 V2.0, 2000-07 2.1 Basic CPU Concepts and Optimizations The main core of the CPU consists of a 4-stage instruction pipeline, a 16-bit arithmetic and logic unit (ALU) and dedicated SFRs. Additional hardware is provided for a separate multiply and divide unit, a bit-mask generator and a barrel shifter. Figure 2-2 CPU Block Diagram To meet the demand for greater performance and flexibility, a number of areas has been optimized in the processor core. Functional blocks in the CPU core are controlled by signals from the instruction decode logic. These are summarized below, and described in detail in the following sections: 1) High Instruction Bandwidth/Fast Execution 2) High Function 8-bit and 16-bit Arithmetic and Logic Unit 3) Extended Bit Processing and Peripheral Control 4) High Performance Branch-, Call-, and Loop Processing 5) Consistent and Optimized Instruction Formats 6) Programmable Multiple Priority Interrupt Structure MCB02147 CPU SP STKOV STKUN Instr. Reg. Instr. Ptr. Exec. Unit 4-Stage Pipeline MDH MDL PSW SYSCON Context Ptr. Mul/Div-HW R15 R0 General Purpose Registers Bit-Mask Gen Barrel - Shifter ALU (16-bit) Data Page Ptr. Code Seg. Ptr. Internal RAM R15 R0 ROM 16 16 32 BUSCON 0 BUSCON 1 BUSCON 2 BUSCON 3 BUSCON 4 ADDRSEL 4 ADDRSEL 3 ADDRSEL 2 ADDRSEL 1 |
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