SM320DM6446 datasheet(14/228 Pages) TI1

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src2

.D1

.M1

.S1

.L1

long src

odd dst

src2

src1

even dst

odd dst

dst1

dst

src2

long src

DA1

ST1b

LD1b

LD1a

ST1a

Data path A

Odd

file A

(A1, A3,

A5...A31)

Odd

file B

(B1, B3,

B5...B31)

.D2

src1

dst

src2

DA2

LD2a

LD2b

src2

.M2

src1

dst1

.S2

src1

even dst

long src

odd dst

ST2a

ST2b

long src

.L2

even dst

odd dst

src1

Data path B

Control Register

32 MSB

32 LSB

dst2

(A)

32 MSB

32 LSB

32 MSB

32 LSB

32 MSB

dst2

(B)

(A)

(C)

Even

file A

(A0, A2,

A4...A30)

Even

file B

(B0, B2,

B4...B30)

(D)

A. On .M unit, dst2 is 32 MSB.

B. On .M unit, dst1 is 32 LSB.

C. On C64x CPU .M unit, src2 is 32 bits; on C64x+ CPU .M unit, src2 is 64 bits.

D. On .L and .S units, odd dst connects to odd register files and even dst connects to even register files.

SM320DM6446

Digital Media System-on-Chip

SPRS607A – JUNE 2009 – REVISED JUNE 2009

www.ti.com

Figure 2-1. SM320C64x+™ CPU (DSP Core) Data Paths

Device Overview

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