Function Description; Standard Application System - Epson S1V3G340 Hardware Specification

5. Function Description

5.1
S1V3G340 Hardware Specification
(Rev. 1.0)
Downloaded from Elcodis.com electronic components distributor

Standard Application System

Host
Serial I/F
(SPI/UART/I2C)
Clock or CERALOCK
Audio decoder
32.768kHz or 12.288MHz
Power supply voltage
2.2 V to 5.5 V
SRAM
Figure 5.1 Standard application system
Figure 5.1 shows a standard S1V3G340 application system. The host controls the S1V3G340 with
commands (message protocol) issued via the serial interface. After Power On Reset, the S1V3G340
outputs audio from the internal DA converter while performing internal processing including
decoding of the audio data from the SPI flash memory and the compressed audio data transmitted
from the host.
For more information on commands, see "S1V3034x Series Message Protocol Specification."
For more information on voice guidance creation tools, see "EPSON Speech IC Voice Guidance
Creation Tool User Guide."
Command controller
DA converter
ROM
SPI master I/F
EPSON
5. Function Description
GPO x 7
Speaker
SPI FLASH memory
7