SLAVE SPEECH SYNTHESIZERS
MSP53C391, MSP53C392 SLAVE SPEECH SYNTHESIZERS
D Slave Speech Synthesizers, LPC, MELP,
CELP
D Two Channel FM Synthesis,...
Description
MSP53C391, MSP53C392 SLAVE SPEECH SYNTHESIZERS
D Slave Speech Synthesizers, LPC, MELP,
CELP
D Two Channel FM Synthesis, PCM D 8-Bit Microprocessor With 61 instructions D 3.3V to 6.5V CMOS Technology for Low
Power Dissipation
D Direct Speaker Drive Capability D Internal Clock Generator That Requires No
External Components
D Two Software-Selectable Clock Speeds D 10-kHz or 8-kHz Speech Sample Rate
SPSS024 – NOVEMBER 1999
MSP53C391 N PACKAGE (TOP VIEW)
DATA2/EOS DATA1 DATA0 OUT2 OUT1 EOS R/W OSC IN
1 2 3 4 5 6 7 8
16 DATA3/BUSY 15 STROB 14 IRQ 13 DAC+ 12 DAC–
11 VDD 10 VSS 9 INIT
description
The MSP53C391 and MSP53C392 are catalog MSP50C3x codes which implements the functionality of a slave speech synthesizer. They communicate with a master microprocessor using two control lines (R/W and STROBE) and either a 4-bit data bus (MSP53C391) or an 8-bit data bus (MSP53C392).
Either the MSP53C391 or the MSP53C392 can synthesize speech using several different compression algorithms; LPC, MELP, or CELP. They also can synthesize two-channel music using FM synthesis.
See the MSP50C3x User’s Guide (literature number: SLOU006B) for more information about the MSP50C3x family.
DATA6/EOS DATA5 DATA4 DATA3 DATA2 DATA1 R/W OSC IN
MSP53C392 N PACKAGE (TOP VIEW)
1 16 2 15 3 14 4 13 5 12 6 11 7 10 89
DATA7/BUSY STROB DATA0 DAC+ DAC– VDD VSS INIT
Table 1. MSP53C39x Family
DEVICE MSP53C391 MSP53C392
4-bit data bus 8-bit data bus
FEATURES
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