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TMS320VC5471GHKA датащи(PDF) 24 Page - Texas Instruments

номер детали TMS320VC5471GHKA
подробное описание детали  Fixed-Point Digital Signal Processor
PDF  97 Pages
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TMS320VC5471GHKA датащи(HTML) 24 Page - Texas Instruments

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DSP Subsystem Functional Overview
15
June 2001 – Revised December 2002
SPRS180C
3.2.4 API Boot-Mode DSP Memory Map
The memory map when the API boot mode feature is enabled is shown in Figure 3–3. API boot mode is
enabled when DSP_REG[9] (DSP_APIBN) is 0 and BSCR[4] (ABMDIS) is 0.
Hex
Page 0 Program,
MP/MC = 1
(Microprocessor Mode)
Hex
Page 0 Program,
MP/MC = 0
(Microcomputer Mode)
Hex
Data
0000
OVLY = 1
OVLY = 0
0000
OVLY = 1
OVLY = 0
0000
007F
Reserved
External
Program
Space
007F
Reserved
External
Program
Space
007F
Memory Mapped Registers,
Scratch-Pad RAM
0080
On-chip Data
DARAM
0080
On-chip Data
DARAM
0080
On-chip Data DARAM
(8K–0x80 Words)
1FFF
DARAM
1FFF
DARAM
1FFF
(8K–0x80 Words)
2000
External
2000
External
2000
On-chip Data DARAM,
API-Accessible
37FF
On-chip Data
DARAM,
Program
Space
37FF
On-chip Data
DARAM,
External
Program
Space
37FF
API-Accessible
(8K Words)
3800
DARAM,
API-accessible
Space
3800
DARAM,
API-accessible
g
Space
3800
(shadowed portion)
3FFF
3FFF
3FFF
(shadowed portion)
4000
On-chip Data
4000
On-chip Data
4000
On-chip Data SARAM
5FFF
On chip Data
SARAM
5FFF
On chip Data
SARAM
5FFF
On chip Data SARAM
(8K Words – data only)
6000
6000
6000
On-chip Data SARAM
7FFF
On chip Data SARAM
(8K Words)
8000
External Data Space Memory
BFFF
External Data Space Memory
C000
DROM=1
DROM=0
External Program Space
External Program Space
DFFF
On-chip
Program
SARAM
(8K Words)
External Data
Space
E000
On-chip
Program
Space
Memory
F7FF
F7FF
F7FF
Program
SARAM
(6K Words)
F800
Shadowed API DARAM (2K)
F800
Shadowed API DARAM (2K)
F800
External Data Space Memory
FFFF
Shadowed API DARAM (2K)
FFFF
Shadowed API DARAM (2K)
FFFF
External Data Space Memory
† When DSP_REG[9] (DSP_APIBN) = 0 and BSCR[4] (ABMDIS) = 0, 2K words of the API DARAM are remapped to program-space, regardless of
DSP_REG[10] (MP/MC) value. All other internal program-space RAMs are disabled in program space. Overlayable data-space RAMs may be
dual-mappedto program-space via OVLY.
Figure 3–3. API Boot Mode Memory Map for DSP Accesses (DSP_APIBN = 0 and ABMDIS = 0)†



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