SM320VC5510A-EP Datasheet, PDF (21/82 Pages) Texas Instruments – SM320VC5510A-EP Fixed-Point Digital Signal Processor

Functional Overview
3.1 Memory
The 5510 supports a unified memory map (program and data accesses are made to the same physical space).
The total on-chip memory is 352K bytes (176K 16-bit words).
3.1.1 On-Chip Dual-Access RAM (DARAM)
The DARAM is located in the byte address range 000000h−00FFFFh and is composed of eight blocks of
8K-bytes each (see Table 3−1). 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.
Table 3−1. DARAM Blocks
BYTE ADDRESS RANGE
000000h − 001FFFh
002000h − 003FFFh
004000h − 005FFFh
006000h − 007FFFh
008000h − 009FFFh
00A000h − 00BFFFh
00C000h − 00DFFFh
00E000h − 00FFFFh
MEMORY BLOCK
DARAM 0
DARAM 1
DARAM 2
DARAM 3
DARAM 4
DARAM 5
DARAM 6
DARAM 7
3.1.2 On-Chip Single-Access RAM (SARAM)
The SARAM is located at the byte address range 010000h−04FFFFh and is composed of 32 blocks of
8K-bytes each (see Table 3−2). 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 3−2. SARAM Blocks
BYTE ADDRESS RANGE
010000h − 011FFFh
012000h − 013FFFh
014000h − 015FFFh
016000h − 017FFFh
018000h − 019FFFh
01A000h − 01BFFFh
01C000h − 01DFFFh
01E000h − 01FFFFh
020000h − 021FFFh
022000h − 023FFFh
024000h − 025FFFh
026000h − 027FFFh
028000h − 029FFFh
02A000h − 02BFFFh
02C000h − 02DFFFh
02E000h − 02FFFFh
MEMORY BLOCK
SARAM 0
SARAM 1
SARAM 2
SARAM 3
SARAM 4
SARAM 5
SARAM 6
SARAM 7
SARAM 8
SARAM 9
SARAM 10
SARAM 11
SARAM 12
SARAM 13
SARAM 14
SARAM 15
BYTE ADDRESS RANGE
030000h − 031FFFh
032000h − 033FFFh
034000h − 035FFFh
036000h − 037FFFh
038000h − 039FFFh
03A000h − 03BFFFh
03C000h − 03DFFFh
03E000h − 03FFFFh
040000h − 041FFFh
042000h − 043FFFh
044000h − 045FFFh
046000h − 047FFFh
048000h − 049FFFh
04A000h − 04BFFFh
04C000h − 04DFFFh
04E000h − 04FFFFh
MEMORY BLOCK
SARAM 16
SARAM 17
SARAM 18
SARAM 19
SARAM 20
SARAM 21
SARAM 22
SARAM 23
SARAM 24
SARAM 25
SARAM 26
SARAM 27
SARAM 28
SARAM 29
SARAM 30
SARAM 31
August 2003 − Revised November 2003
SGUS045A
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