MSM6679A-110 Voice Recognition Processor

¡ Semiconductor

2

Contents

Description .......................................................................................................................................... 1

Features ................................................................................................................................................ 1

Functional and I/O Diagrams .......................................................................................................... 2

Pin Descriptions ................................................................................................................................. 8

Electrical Specifications ..................................................................................................................... 12

Absolute Maximum Ratings ............................................................................................ 12

Operating Conditions ....................................................................................................... 12

DC Characteristics (VDD = 4.5 to 5.5 V, Ta = -40 to 80˚C) .......................................... 13

AC Characteristics ............................................................................................................ 14

Timing Diagrams .............................................................................................................. 15

Functional Description ...................................................................................................................... 17

Voice Recognition ............................................................................................................. 17

SI Recognition ................................................................................................... 17

SD Recognition ................................................................................................. 20

Name Tag Recording ........................................................................................................ 20

Audio Input Interface ....................................................................................................... 21

Audio Output Interface .................................................................................................... 21

Memory Interface .............................................................................................................. 21

External Voice Synthesis Control ................................................................................... 24

Serial Interface ................................................................................................................... 25

MSM6679A-110 Slave-Mode API .................................................................................................... 26

Command Summary ........................................................................................................ 27

Command Descriptions ................................................................................................... 31

Asynchronous Serial Protocol Example ........................................................................ 44