W681307 Datasheet, PDF(4/160 Page) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

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W681307 Datasheet, PDF (4/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

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W681307

7.3.24

W2S Interface Registers Overview ............................................................................... - 36 -

7.3.25

USB Control Registers Overview ................................................................................. - 37 -

7.3.26

ISP Mode ..................................................................................................................... - 38 -

8. SUPPORT LOGIC ................................................................................................................. - 39 -

8.1

Clock Control & Reset 32K ............................................................................................... - 40 -

8.1.1

Overview..................................................................................................................... - 40 -

8.1.2

Functionality ............................................................................................................... - 40 -

8.1.3

Clock Enable Register .................................................................................................. - 40 -

8.2

Interrupt Control.............................................................................................................. - 41 -

8.2.1

Overview..................................................................................................................... - 41 -

8.2.2

Functionality ............................................................................................................... - 41 -

8.2.3

Interrupt Registers....................................................................................................... - 43 -

8.2.4

Extends of interrupt..................................................................................................... - 44 -

8.3

Ringer Tone Generator..................................................................................................... - 45 -

8.3.1

Overview..................................................................................................................... - 45 -

8.3.2

Functionality ............................................................................................................... - 45 -

8.3.3

Sounder Tone Register Definition ................................................................................ - 46 -

8.3.4

Sounder Volume Register Definition ........................................................................... - 46 -

8.3.5

Example of use ............................................................................................................ - 46 -

8.3.6

Sounder Registers........................................................................................................ - 47 -

8.4

PIEZO Tone Generator..................................................................................................... - 48 -

8.4.1

Overview..................................................................................................................... - 48 -

8.4.2

Functionality ............................................................................................................... - 48 -

9. INTERFACE LOGIC ............................................................................................................. - 49 -

9.1

Keypad Scanner ............................................................................................................... - 49 -

9.1.1

Overview..................................................................................................................... - 49 -

9.1.2

Use of the Keypad Scanner .......................................................................................... - 50 -

9.1.3

Use of a Software Keypad Scanner............................................................................... - 50 -

9.2

I/O Ports.......................................................................................................................... - 50 -

9.3

Keypad Control Registers ................................................................................................ - 51 -

9.3.1

Key Location and Size Programming........................................................................... - 53 -

9.4

Timers.............................................................................................................................. - 53 -

9.4.1

Watch Dog Control...................................................................................................... - 54 -

9.4.2

Timer 1ms Control1 ..................................................................................................... - 54 -

9.4.3

Timer Control .............................................................................................................. - 54 -

9.4.4

1S Counter................................................................................................................... - 55 -

9.4.5

Watch Dog Kick........................................................................................................... - 55 -

9.4.6

1ms Counter ................................................................................................................ - 55 -

10. SPEECH INTERFACE........................................................................................................... - 56 -

10.1 Overview ......................................................................................................................... - 56 -

10.2 Functionality .................................................................................................................... - 56 -

10.3 PCM Serial Interface......................................................................................................... - 57 -

10.3.1

Use with Additional External Lines ............................................................................. - 57 -

10.3.2

I/O Ports ..................................................................................................................... - 57 -

10.3.3

Status of Speech Interface When Reset......................................................................... - 58 -

10.4 Internal CODEC Control .................................................................................................. - 58 -

10.5 PCM Interface Registers ................................................................................................... - 58 -

10.5.1

Speech Control 0.......................................................................................................... - 58 -

-4-

Publication Release Date: May, 2007

Revision 1.3

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