88F6281

Hardware Specifications

Table 20: Time Division Multiplexing (TDM) Interface Signal Assignment (Continued)

Pin Name

I/O

Pin Type

Power Rail

Description

TDM_SPI_MOSI

O

CMOS

VDDO/

Serial SPI data from the host to the codec for register access.

 

 

 

VDD_GE_B

When TDM_SPI_CS is asserted low, the data is driven from the

 

 

 

 

host on the negative edge of TDM_SPI_SCK. It is always driven

 

 

 

 

for eight TDM_SPI_SCK cycles at a time.

 

 

 

 

In a byte, the data can be driven MSB or LSB first.

TDM_SPI_MISO

I

CMOS

VDDO/

Serial SPI read data from the CODEC to the host for register

 

 

 

VDD_GE_B

access.

 

 

 

 

When TDM_SPI_CS is asserted low, this data is driven from

 

 

 

 

CODEC on negative edge of TDM_SPI_SCK. It is always driven

 

 

 

 

for eight TDM_SPI_SCK cycles at a time. The CODEC drives

 

 

 

 

data on this line only for a read operation, when it gets command

 

 

 

 

and address in previous bytes from the host on TDM_SPI_MOSI

 

 

 

 

In a byte, the data can be driven MSB or LSB first.

 

 

 

 

 

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

 

Copyright © 2008 Marvell

Page 44

Document Classification: Proprietary Information

December 2, 2008, Preliminary

Page 44
Image 44
Marvel Group 88F6281 specifications Tdmspimosi Cmos Vddo, Tdmspimiso Cmos Vddo