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TMP320C6726BRFPA266 数据表(PDF) 10 Page - Texas Instruments |
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TMP320C6726BRFPA266 数据表(HTML) 10 Page - Texas Instruments |
10 / 118 page 2.4 Internal Program/Data ROM and RAM ROM Page 1 Base Address 0x0004 0000 ROM Page 0 Base Address 0x0000 0000 Bank 0 Bank 1 Bank 2 Bank 3 RAM Page 0 Base Address 0x1000 0000 Bank 0 Bank 1 Bank 2 Bank 3 Bank 4 Bank 5 Bank 6 Bank 7 TMS320C6727B, TMS320C6726B, TMS320C6722B, TMS320C6720 Floating-Point Digital Signal Processors SPRS370E – SEPTEMBER 2006 – REVISED JULY 2008 www.ti.com The organization of program/data ROM and RAM on C672x 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 C672x 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 C672x 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 C672x ROM consists of a software bootloader plus additional software. Please refer to the C9230C100 TMS320C672x Floating-Point Digital Signal Processors ROM Data Manual (literature number SPRS277) for more details on the ROM contents. Device Overview 10 Submit Documentation Feedback |
类似零件编号 - TMP320C6726BRFPA266 |
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类似说明 - TMP320C6726BRFPA266 |
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