88F6281

Hardware Specifications

1.2.15 Audio (S/PDIF / I2S) Interface

 

 

 

 

„ All of the Audio signals are multiplexed on the MPP pins (see Section 4, Pin

 

 

 

 

 

Multiplexing, on page 51).

 

 

 

 

„ If the Audio interface is not used, leave all of the signals unconnected.

 

Note

 

„

The Audio signals are powered on VDDO or on VDD_GE_B, based on the pin

 

 

 

 

multiplexing option.

Table 17: Audio (S/PDIF / I2S) Interface Signal Assignment

Pin Name

I/O

Pin

Power

Description

 

 

Type

Rail

 

AU_SPDIFI

I

CMOS

VDDO/

S/PDIF In

 

 

 

VDD_GE_B

 

AU_SPDIFO

O

CMOS

VDDO/

S/PDIF Out

 

 

 

VDD_GE_B

 

AU_

O

CMOS

VDDO/

S/PDIF Recovered Master Clock (256 x Fs)1

SPDFRMCLK

 

 

VDD_GE_B

For the frequency of this clock, see the Audio External

 

 

 

 

Reference Clock section of Table 45, Reference Clock AC

 

 

 

 

Timing Specifications, on page 86.

AU_I2SBCLK

O

CMOS

VDDO/

I2S Bit Clock (64 x Fs)

 

 

 

VDD_GE_B

 

AU_I2SDO

O

CMOS

VDDO/

Transmitter Data Out

 

 

 

VDD_GE_B

 

AU_I2SLRCLK

O

CMOS

VDDO/

I2S Left/Right Clock (1 x Fs)

 

 

 

VDD_GE_B

 

AU_I2SMCLK

O

CMOS

VDDO/

I2S Master Clock (256 x Fs)

 

 

 

VDD_GE_B

 

AU_I2SDI

I

CMOS

VDDO/

I2S Receiver Data In

 

 

 

VDD_GE_B

 

AU_EXTCLK

I

CMOS

VDDO/

External Audio Clock

 

 

 

VDD_GE_B

For the frequency of this clock, see the Audio External

 

 

 

 

Reference Clock section of Table 45, Reference Clock AC

 

 

 

 

Timing Specifications, on page 86.

 

 

 

 

 

1. Fs is the audio sample rate.

Doc. No. MV-S104859-U0 Rev. E

 

Copyright © 2008 Marvell

Page 40

Document Classification: Proprietary Information

December 2, 2008, Preliminary

Page 40
Image 40
Marvel Group 88F6281 Audio S/PDIF / I2S Interface Signal Assignment, Multiplexing option, Fs is the audio sample rate