參數(shù)資料
型號(hào): TMX320VC5509AGHH
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: TMS320VC5509A Fixed-Point Digital Signal Processor
中文描述: TMS320VC5509A定點(diǎn)數(shù)字信號(hào)處理器
文件頁(yè)數(shù): 32/144頁(yè)
文件大小: 1603K
代理商: TMX320VC5509AGHH
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Functional Overview
32
November 2002 Revised January 2005
SPRS205D
3.1
Memory
The 5509A supports a unified memory map (program and data accesses are made to the same physical
space). The total on-chip memory is 320K bytes (128K 16-bit words of RAM and 32K 16-bit words of ROM).
3.1.1 On-Chip Dual-Access RAM (DARAM)
The DARAM is located in the byte address range 000000h00FFFFh and is composed of eight blocks of
8K bytes each (see Table 31). Each DARAM block can perform two accesses per cycle (two reads, two
writes, or a read and a write). DARAM can be accessed by the internal program, data, or DMA buses. The
HPI can only access the first four (32K bytes) DARAM blocks.
Table 31. DARAM Blocks
BYTE ADDRESS RANGE
MEMORY BLOCK
DARAM 0 (HPI accessible)
000000h 001FFFh
002000h 003FFFh
DARAM 1 (HPI accessible)
004000h 005FFFh
DARAM 2 (HPI accessible)
006000h 007FFFh
DARAM 3 (HPI accessible)
008000h 009FFFh
DARAM 4
00A000h 00BFFFh
DARAM 5
00C000h 00DFFFh
DARAM 6
00E000h 00FFFFh
DARAM 7
First 192 bytes are reserved for Memory-Mapped Registers (MMRs).
3.1.2 On-Chip Single-Access RAM (SARAM)
The SARAM is located at the byte address range 010000h03FFFFh and is composed of 24 blocks of 8K bytes
each (see Table 32). 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.
Table 32. SARAM Blocks
BYTE ADDRESS RANGE
MEMORY BLOCK
BYTE ADDRESS RANGE
MEMORY BLOCK
010000h 011FFFh
SARAM 0
028000h 029FFFh
SARAM 12
012000h 013FFFh
SARAM 1
02A000h 02BFFFh
SARAM 13
014000h 015FFFh
SARAM 2
02C000h 02DFFFh
SARAM 14
016000h 017FFFh
SARAM 3
02E000h 02FFFFh
SARAM 15
018000h 019FFFh
SARAM 4
030000h 031FFFh
SARAM 16
01A000h 01BFFFh
SARAM 5
032000h 033FFFh
SARAM 17
01C000h 01DFFFh
SARAM 6
034000h 035FFFh
SARAM 18
01E000h 01FFFFh
SARAM 7
036000h 037FFFh
SARAM 19
020000h 021FFFh
SARAM 8
038000h 039FFFh
SARAM 20
022000h 023FFFh
SARAM 9
03A000h 03BFFFh
SARAM 21
024000h 025FFFh
SARAM 10
03C000h 03DFFFh
SARAM 22
026000h 027FFFh
SARAM 11
03E000h 03FFFFh
SARAM 23
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