Yamaha Ymf715 Audio Chip; Features - Acer Extensa 61X Service Manual

2.8

Yamaha YMF715 Audio Chip

YMF715-S (OPL3-SA3) is a single audio chip that integrates OPL3 and its DAC, 16 bit Sigma-
delta CODEC, MPU401 MIDI interface, joystick with timer, and a 3D enhanced controller including
all the analog components which is suitable for multi-media application. This LSI is fully compliant
with Plug and Play ISA 1.0a, and supports all the necessary features, i.e. 16 bit address decode,
more IRQs and DMAs in compliance with PC'96. This LSI also supports the expandability, i.e.
Zoomed Video, Modem and CD-ROM interface in a Plug and Play manner, and power
management (power down, power save, partial power down, and suspend/resume) that is
indispensable with power-conscious application.
2.8.1

Features

Built-in OPL3
Supports Sound Blaster Game compatibility
Supports Windows Sound System compatibility
Supports Plug
&
Full Duplex operation
Built-in MPU401 Compatible MIDI I/O port
Built-in Joystick
Built-in the 3D enhanced controller including all the analog components
Supports multi-purpose pin function (Support 16-bit address decode, DAC interface for OPL4-
ML, Zoomed Video port, EEPROM interface, MODEM interface, IDE CD-ROM interface)
Hardware and software master volume control
Supports monaural input
24 mA 1TL bus drive capability
Supports Power Management(power down, power save, partial power down, and
suspend/resume) ..
+5V/ +3.3V power supply for digital, 5V power supply for analog.
100 pin SQFP package (YMF715-S)
Major Chips Description
Play ISA 1.0a compatibility
2-87