SH7641 Datasheet, PDF(164/1036 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

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SH7641 Datasheet, PDF (164/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

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Section 3 DSP Operation

Table 3.8 Operation Definition of PDMSB

Source Data

Result for DST

Guard Bit

Upper Word

Guard

Lower Word Bit

Upper Word

7g 6g â¦ 1g 0g 31 30 29 28 â¦ 3 2 1 0 7g to 0g 31 to 22 21 20 19 18 17 16 Decimal

0 0 â¦ 0 0 0 0 0 0 â¦ 0 0 0 0 All 0 All 0 0 1 1 1 1 1 +31

0 0 â¦ 0 0 0 0 0 0 â¦ 0 0 0 1 All 0 All 0 0 1 1 1 1 0 +30

0 0 â¦ 0 0 0 0 0 0 â¦ 0 0 1 * All 0 All 0 0 1 1 1 0 1 +29

0 0 â¦ 0 0 0 0 0 0 â¦ 0 1 * * All 0 All 0 0 1 1 1 0 0 +28

:

:

:

0 0 â¦ 0 0 0 0 0 1 â¦ * * * * All 0 All 0 0 0 0 0 1 0 +2

0 0 â¦ 0 0 0 0 1 * â¦ * * * * All 0 All 0 0 0 0 0 0 1 +1

0 0 â¦ 0 0 0 1 * * â¦ * * * * All 0 All 0 0 0 0 0 0 0

0

0 0 â¦ 0 0 1 * * * â¦ * * * * All 1 All 1 1 1 1 1 1 1 â1

0 0 â¦ 0 1 * * * * â¦ * * * * All 1 All 1 1 1 1 1 1 0 â2

:

:

:

0 1 â¦ * * * * * * â¦ * * * * All 1 All 1 1 1 1 0 0 0 â8

1 0 â¦ * * * * * * â¦ * * * * All 1 All 1 1 1 1 0 0 0 â8

:

1 1 â¦ 1 0 * * * * â¦ * * * * All 1 All 1 1 1 1 1 1 0 â2

1 1 â¦ 1 1 0 * * * â¦ * * * * All 1 All 1 1 1 1 1 1 1 â1

1 1 â¦ 1 1 1 0 * * â¦ * * * * All 0 All 0 0 0 0 0 0 0

0

1 1 â¦ 1 1 1 1 0 * â¦ * * * * All 0 All 0 0 0 0 0 0 1 +1

1 1 â¦ 1 1 1 1 1 0 â¦ * * * * All 0 All 0 0 0 0 0 1 0 +2

:

:

:

1 1 â¦ 1 1 1 1 1 1 â¦ 1 0 * * All 0 All 0 0 1 1 1 0 0 +28

1 1 â¦ 1 1 1 1 1 1 â¦ 1 1 0 * All 0 All 0 0 1 1 1 0 1 +29

1 1 â¦ 1 1 1 1 1 1 â¦ 1 1 1 0 All 0 All 0 0 1 1 1 1 0 +30

1 1 â¦ 1 1 1 1 1 1 â¦ 1 1 1 1 All 0 All 0 0 1 1 1 1 1 +31

Note: * means Don't care.

Rev. 4.00 Sep. 14, 2005 Page 114 of 982

REJ09B0023-0400

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