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SM320C6727B Datasheet(PDF) 10 Page - Texas Instruments |
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SM320C6727B Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 111 page  RAM Page 0 Base Address 0x1000 0000 Bank 0 Bank 1 Bank 2 Bank 3 Bank 4 Bank 5 Bank 6 Bank 7 ROM Page 1 Base Address 0x0004 0000 ROM Page 0 Base Address 0x0000 0000 Bank 0 Bank 1 Bank 2 Bank 3 SM320C6727B SPRS861 – JANUARY 2014 www.ti.com 2.4 Internal Program/Data ROM and RAM The organization of program/data ROM and RAM on C6727B is simple and efficient. ROM is organized as two 256-bit-wide pages with four 64-bit-wide banks. RAM is organized as a single 256-bit-wide page with eight 32-bit-wide banks. The internal memory organization is illustrated in Figure 2-2 (ROM) and Figure 2-3 (RAM). Figure 2-2. Program/Data ROM Organization Figure 2-3. Program/Data RAM Organization The C6727B memory controller supports up to three parallel accesses to the internal RAM and ROM from three of the following four sources as long as there are no bank conflicts: • Two 64-bit data accesses from the C67x+ CPU • One 256-bit-wide program fetch from the program cache • One 32-bit data access from the peripheral system (either dMAX or UHPI) A program cache miss is 256 bits wide and conflicts only with data accesses to the same page. Multiple data accesses to different pages, or to the same page but different banks will occur without conflict. The organization of the C6727B internal memory system into multiple pages (3 total) and a large number of banks (16 total) means that it is straightforward to optimize DSP code to avoid data conflicts. Several factors, including the large program cache and the partitioning of the memory system into multiple pages, minimize the number of program versus data conflicts. The result is an efficient memory system which allows easy tuning towards the maximum possible CPU performance. The C6727B ROM consists of a software bootloader plus additional software. 10 Device Overview Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: SM320C6727B |
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