TMS320VC5504 datasheet(13/128 Pages) TI

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3.2.1

On-Chip Dual-Access RAM (DARAM)

3.2.2

On-Chip Single-Access RAM (SARAM)

TMS320VC5504

Fixed-Point Digital Signal Processor

www.ti.com

SPRS609A – JUNE 2009 – REVISED JULY 2009

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

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 , TMS320VC5504

Memory Map Summary.

The SARAM is located at the byte address range 010000h – 03FFFFh and is composed of 24 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 DMA bus.

Table 3-3. SARAM Blocks

CPU

DMA/USB CONTROLLER

MEMORY BLOCK

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

030000h – 031FFFh

000B 0000h – 000B 1FFFh

SARAM 16

032000h – 033FFFh

000B 2000h – 000B 3FFFh

SARAM 17

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