SNC88085
24-Channel MIDI/Speech Controller
================== CONTENTS =================
1
2
3
4
5
INTRODUCTION.........................................................................................................................3
FEATURES ...................................................................................................................................3
PIN ASSIGNMENT......................................................................................................................4
BLOCK DIAGRAM .....................................................................................................................5
FUNCTION DESCRIPTION.......................................................................................................5
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
5.8.
5.9.
5.10.
5.11.
OSCILLATOR................................................................................................................................5
ROM...........................................................................................................................................6
RAM...........................................................................................................................................6
POWER DOWN MODE ..................................................................................................................6
IR FUNCTION...............................................................................................................................7
I/O PORTS ...................................................................................................................................7
SAMPLING RATE COUNTERS........................................................................................................8
AUTO REPETITION.......................................................................................................................8
VOICE SYNTHESIZER ...................................................................................................................8
MUSIC SYNTHESIZER...................................................................................................................8
DAC ...........................................................................................................................................9
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7
8
APPLICATION CIRCUIT.........................................................................................................10
ABSOLUTE MAXIMUM RATING..........................................................................................13
ELECTRICAL CHARACTERISTICS.....................................................................................13
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Ver: 1.5
Sep 08, 2006