SNC201

Direct Drive Speech Controller

================= CONTENTS ================

1.

INTRODUCTION........................................................................................................2

2.

FEATURES ..................................................................................................................2

3.

BLOCK DIAGRAM ....................................................................................................3

4.

PIN ASSIGNMENT.....................................................................................................3

5.

FUNCTION DESCRIPTIONS ...................................................................................4

5.1.

OSCILLATOR ...............................................................................................................4

5.2.

ROM ..........................................................................................................................4

5.3.

RAM ..........................................................................................................................4

5.4.

POWER DOWN MODE..................................................................................................4

5.5.

SAMPLING RATE COUNTERS .......................................................................................4

5.6.

EVENT MARK..............................................................................................................5

5.7.

I/O PORTS...................................................................................................................5

5.8.

DAC & PWM ............................................................................................................6

6.

ABSOLUTE MAXIMUM RATING ..........................................................................8

7.

ELECTRICAL CHARACTERISTICS .....................................................................8

8.

APPLICATION CIRCUIT .........................................................................................9

DISCLAIMER .....................................................................................................................11

Ver: 1.1

June 8, 2005

1