DSP56004 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

DSP56004

SYMPHONY™ AUDIO DSP FAMILY 24-BIT DIGITAL SIGNAL PROCESSORS

Freescale Semiconductor 

Freescale Semiconductor, Inc.

Signal/Connection Descriptions

Serial Audio Interface (SAI)

Table 1-9 Serial Audio Interface (SAI) Receiver signals (Continued)

Signal

Name

Signal

Type

State during

Reset

Signal Description

WSR

Input or

Output

Tri-stated

Word Select Receive (WSR)—WSR is an output if the

receiver section is configured as a master, and a

Schmitt-trigger input if configured as a slave. WSR is

used to synchronize the data word and to select the

left/right portion of the data sample.

Note:

WSR is high impedance if all receivers are disabled

(individual reset), during hardware reset, during

software reset, or while the DSP is in the Stop state.

While in the high impedance state, the internal

input buffer is disconnected from the signal and no

external pull-up is necessary.

1-14

DSP56004/D, Rev. 3

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