YSS950 datasheet(7/30 Pages) YAMAHA

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YSS950

■ Pin Function List

Type

No.

Pin Name

I/O

Note 1)

Function

/CS

SPI chip select input

SCK

SPI clock input

SPI address/data input

Serial

peripheral

interface (SPI)

SPI data output

Connect this pin to a pull-up resistor.

SDIMCK

Master clock input

SDIBCK

Bit clock input for serial data input

SDIWCK

Word clock input for serial data input

SDI0

SDI1

SDI2

SDI3

SDI4

SDI5

SDI6

SDI7

Serial data input

Connect unused pins to a ground.

SDOMCK

Master clock output

SDOBCK

Is/O

Bit clock I/O for serial data output

Input during slave mode and output during master mode.

SDOWCK

I/O

Word clock I/O for serial data output

Input during slave mode and output during master mode.

SDO0

SDO1

SDO2

SDO3

SDO4

SDO5

SDO6

Serial data

interface

SDO7

Serial data output

Connect unused pins to a ground.

/INT

Interrupt report output

Status

/MUTE

Auto mute report output

GPIO0

GPIO1

GPIO2

General-purpose

I/O ports

GPIO3

I+/O

General-purpose I/O ports

Pull-up during input, no pull-up during output.

Connect unused pins to a ground.

/RST

Hardware reset input

This LSI is initialized when at low level.

Clock input

Connect this pin to a 12.288 MHz crystal oscillator, such as in the part of

the circuit example indicated by Note 2.

If a crystal oscillator has not

been connected, input a 12.288 MHz clock to the XI pin.

System

Clock output

Connect as shown by Note 2 in the circuit example.

If inputting a clock directly to the XI pin (without connecting a crystal

oscillator), do not connect anything to the XO pin.

Do not use the XO pin for any purpose other than clock oscillation.

TEST0

TEST1

TEST2

TEST3

Test

TEST4

Test input

Connect to a ground.

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