YSS950 View Datasheet(PDF) - Yamaha Corporation

Part Name

Description

Manufacturer

YSS950

Digital Audio Processor

Yamaha Corporation 

（3） Status

These informations are notified from LSI.

<１> Interrupt report

<２> Auto mute report

<３> Sampling frequency report

YSS950

（4） General-Purpose I/O Ports

General-purpose I/O ports GPIO3 to GPIO0 implement the following functions. I/O polarity switching is

performed by GPIOD[3:0].

<1> Input port:

Pin status is read via GPI[3:0].

<2> Output port:

GPO[3:0] or DSP status is output to a pin. Switching of output contents is performed by GPOSEL[3:0].

<3> Chip address port:

The port is used as chip address input for selection of a chip to share (CAE=1)..

GPOSEL[x]

(register)

GPIOD[x]

(register)

GPI[x]

(register)

CA comparison

GPO[x]

(register)

sel

DSP Status[x]

Pull-up circuit

GPIOx

(pin)

20

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