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Motore di ricerca datesheet componenti elettronici |
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TMS320VC5505 Scheda tecnica(PDF) 8 Page - Texas Instruments |
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TMS320VC5505 Scheda tecnica(HTML) 8 Page - Texas Instruments |
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8 / 135 page  TMS320VC5505 SPRS503B – JUNE 2009 – REVISED JANUARY 2010 www.ti.com 3.2.1 On-Chip Dual-Access RAM (DARAM) The DARAM is located in the byte address range 000000h − 00FFFFh and is composed of eight blocks of 4K words each (see Table 3-2). Each DARAM block can perform two accesses per cycle (two reads, two writes, or a read and a write). The DARAM can be accessed by the internal program, data, or DMA buses. Table 3-2. DARAM Blocks CPU DMA CONTROLLER MEMORY BLOCK BYTE ADDRESS RANGE BYTE ADDRESS RANGE 000000h – 001FFFh 0001 0000h – 0001 1FFFh DARAM 0(1) 002000h – 003FFFh 0001 2000h – 0001 3FFFh DARAM 1 004000h – 005FFFh 0001 4000h – 0001 5FFFh DARAM 2 006000h – 007FFFh 0001 6000h – 0001 7FFFh DARAM 3 008000h – 009FFFh 0001 8000h – 0001 9FFFh DARAM 4 00A000h – 00BFFFh 0001 A000h – 0001 BFFFh DARAM 5 00C000h – 00DFFFh 0001 C000h – 0001 DFFFh DARAM 6 00E000h – 00FFFFh 0001 E000h – 0001 FFFFh DARAM 7 (1) The first 192 bytes are reserved for memory-mapped registers (MMRs). See Figure 3-1 , TMS320VC5505 Memory Map Summary. 3.2.2 On-Chip Single-Access RAM (SARAM) The SARAM is located at the byte address range 010000h – 04FFFF h and is composed of 32 blocks of 4K words each (see Table 3-3). Each SARAM block can perform one access per cycle (one read or one write). SARAM can be accessed by the internal program, data, or DMA buses. SARAM is also accessed by the USB and LCD DMA buses. Table 3-3. SARAM Blocks CPU DMA/USB CONTROLLER MEMORY BLOCK BYTE ADDRESS RANGE BYTE ADDRESS RANGE 010000h − 011FFFh 0009 0000h – 0009 1FFFh SARAM 0 012000h − 013FFFh 0009 2000h – 0009 3FFFh SARAM 1 014000h − 015FFFh 0009 4000h – 0009 5FFFh SARAM 2 016000h − 017FFFh 0009 6000h – 0009 7FFFh SARAM 3 018000h − 019FFFh 0009 8000h – 0009 9FFFh SARAM 4 01A000h − 01BFFFh 0009 A000h – 0009 BFFFh SARAM 5 01C000h − 01DFFFh 0009 C000h – 0009 DFFFh SARAM 6 01E000h − 01FFFFh 0009 E000h – 0009 FFFFh SARAM 7 020000h − 021FFFh 000A 0000h – 000A 1FFFh SARAM 8 022000h − 023FFFh 000A 2000h – 000A 3FFFh SARAM 9 024000h − 025FFFh 000A 4000h – 000A 5FFFh SARAM 10 026000h − 027FFFh 000A 6000h – 000A 7FFFh SARAM 11 028000h − 029FFFh 000A 8000h – 000A 9FFFh SARAM 12 02A000h − 02BFFFh 000A A000h – 000A BFFFh SARAM 13 02C000h − 02DFFFh 000A C000h – 000A DFFFh SARAM 14 02E000h − 02FFFFh 000A E000h – 000A FFFFh SARAM 15 8 Device Overview Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320VC5505 |
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