SH7713 datasheet(179/904 Pages) RENESAS | Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

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SH7713 Datasheet(PDF) 179 Page - Renesas Technology Corp

Part #	SH7713

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	904 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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SH7713 Datasheet(HTML) 179 Page - Renesas Technology Corp

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SH7713 Datasheet HTML 177Page - Renesas Technology Corp

SH7713 Datasheet HTML 178Page - Renesas Technology Corp

SH7713 Datasheet HTML 179Page - Renesas Technology Corp

SH7713 Datasheet HTML 180Page - Renesas Technology Corp

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Section 3 DSP Operating Unit

Rev.1.50 Aug. 30, 2006 Page 139 of 860

REJ09B0288-0150

3.5.13

Operand Conflict

When an identical destination operand is specified with multiple parallel instructions, data conflict

occurs. Table 3.34 shows the correspondence between each operand and registers.

Table 3.34

Correspondence between Operands and Registers

X-Memory

Load

Y-Memory

Load

6-operand ALU

3-operand

Multiply

3-operand ALU

Ax

Ix

Dx

Ay

Iy

Dy

Sx

Sy

Du

Se

Sf

Dg

Sx

Sy

Dz

A0

*

1

*

2

*

2

*

1

*

1

A1

*

1

*

2

*

1

*

1

*

2

*

1

*

1

M0

*

1

*

1

*

1

*

1

M1

*

1

*

1

*

1

*

1

X0

*

2

*

1

*

2

*

1

*

1

*

1

*

2

X1

*

2

*

1

*

1

*

1

*

2

Y0

*

2

*

1

*

2

*

1

*

1

*

1

*

2

DSP

Registers

Y1

*

2

*

1

*

1

*

1

*

2

Notes: 1. Registers available for operands

2. Registers available for operands (when there is operand conflict)

There are three cases of operand conflict problems.

• When ALU operation and multiply instructions specify the same destination operand (Du and

Dg)

• When X-memory load and ALU operation specify the same destination operand (Dx and Du,

or Dz)

• When Y-memory load and ALU operation specify the same destination operand (Dy and Du,

or Dz)

In these cases above, the result is not guaranteed.

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