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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 80C) .......................................... 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