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MC13224VR2 Scheda tecnica(PDF) 8 Page - Freescale Semiconductor, Inc |
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MC13224VR2 Scheda tecnica(HTML) 8 Page - Freescale Semiconductor, Inc |
8 / 48 page MC13224V Product Preview, Rev. 1.7 8 Freescale Semiconductor 2.5 High Performance, Low Power 32-Bit ARM7 Processor • The ARM7TDMI-S processor is a member of the 32-bit ARM family of general-purpose 32-bit microprocessors that offers high performance with very low-power consumption • A three stage instruction pipeline (fetch, decode, execute) increases the speed of the flow of instructions to the processor • Data access can be 8-bit bytes, 16-bit half words, or 32-bit words. Words must be aligned to 4-byte boundaries. Half words must be aligned to 2-byte boundaries • The ARM7TDMI-S processor supports two instruction sets, i.e., the 32-bit ARM instruction set and the 16-bit Thumb instruction set. The Thumb mode incorporates 16-bit instructions for higher code density while retaining all the benefits of a 32-bit architecture, i.e., full 32-bit registers, 32-bit operations, and 32-bit memory transfer. The use of the instruction sets can be intermixed for maximizing performance while retaining higher code density Figure 3. ARM7TDMI-S 32-Bit CPU Core Register Bank 31 x 32-Bit Registers (6 Status Registers) Address Register Address Incrementer ADDR[31:0] 32 x 8 Multiplier Scan Debug Control Barrel Shifter 32-Bit Alu Write Data Register Instruction Pipeline Read Data Register Thumb Instruction Decoder WDATA[31:0] RDATA[31:0] Instruction Decoder and Control Logic |
Codice articolo simile - MC13224VR2 |
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Descrizione simile - MC13224VR2 |
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