D950CORE View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

D950CORE

16-Bit Fixed Point Digital Signal Processor (DSP) Core

STMicroelectronics 

5.5 Instruction Cycle and Word Count

Table 5.1 Instruction Cycle and Word Count

Instruction Group / Subgroup

Assignment indirect single

Assignment indirect double

Assignment direct

Assignment indirect indexed

Assignment immediate short

Assignment immediate long

Assignment register to register

Assignment register / PRAM

ALU 1-word operand

ALU 2-word operand

ALU 3-word operand

MULT

DMULT

ALU Multiplication

SQR

Bit Manipulation

Program Control Non Delayed

Program Control Delayed

Conditional Assignment

LDCC

REPEAT (single) < 512

REPEAT (single) > 512

REPEAT (block) < 512

REPEAT (block) > 512

COPD

COPS

PUSH / POP register

DPUSH / DPOP register

PUSH / POP direct address

DPUSH / DPOP direct address

PUSH immediate value

DPUSH immediate value

INC SP

Register / Stack indirect indexed

Words

1

1

2

1

1

2

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

2

2

2 or 3

1

1

1

1

2

2

2

2

1

1

D950-Core

Cycles

1

1

2

2

1

2

1

4

1

1

1

1

2

1

1

2

2 or 3

1 or 2

1

2

1

2

2

2 or 3

1

1

1

1

3

3

3

3

1

2

55/89

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