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TMS320VC5410 Datasheet(PDF) 12 Page - Texas Instruments |
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TMS320VC5410 Datasheet(HTML) 12 Page - Texas Instruments |
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12 / 79 page ![]() TMS320VC5410 FIXEDPOINT DIGITAL SIGNAL PROCESSOR SPRS075D – OCTOBER 1998 – REVISED MAY 2000 12 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 memory map Memory-Mapped Registers Program Hex Data Program On-Chip DARAM (OVLY = 1) External (OVLY = 0) MP/MC= 0 (Microcomputer Mode) MP/MC= 1 (Microprocessor Mode) 0000 007F 0080 1FFF 2000 FFFF 005F 0060 007F 0080 On-Chip DARAM (8K Words) Reserved (OVLY = 1) External (OVLY = 0) Interrupts and Reserved (External) FF80 Reserved (OVLY = 1) External (OVLY = 0) On-Chip DARAM (OVLY = 1) External (OVLY = 0) On-Chip ROM (16K Words) Interrupts and Reserved (On-Chip ROM) Scratch-Pad RAM 017FFF 018000 On-Chip SARAM2 (DROM = 1) External (DROM = 0) 1FFF 2000 017FFF 018000 1FFF 2000 FFFF 7FFF 8000 FFFF Hex 010000 Hex 0000 FF7F FF80 FF7F On-Chip SARAM1 (24K Words) On-Chip SARAM1 (OVLY = 1) External (OVLY = 0) 7FFF 8000 On-Chip SARAM1 (OVLY = 1) External (OVLY = 0) BFFF C000 Mapped to Lower Page 0 (OVLY = 1) External (OVLY = 0) On-Chip SARAM2 01FFFF 7FFF 8000 007F 0080 0000 Hex Hex Program Program 010000 01FFFF Mapped to Lower Page 0 (OVLY = 1) External (OVLY = 0) Page 0 Page 0 Page 1 Page 1 External External External Figure 1. Memory Map program memory Software can configure their memory cells to reside inside or outside of the program address map. When the cells are mapped into program space, the device automatically accesses them when their addresses are within bounds. When the program-address generation (PAGEN) logic generates an address outside its bounds, the device automatically generates an external access. The advantages of operating from on-chip memory are as follows: D Higher performance because no wait states are required D Lower cost than external memory D Lower power than external memory The advantage of operating from off-chip memory is the ability to access a larger address space. |
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