DSP56362AD datasheet(30/168 Pages) MOTOROLA

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DSP56362 Advance Information

MOTOROLA

Signal/Connection Descriptions

Enhanced Serial Audio Interface

ENHANCED SERIAL AUDIO INTERFACE

Table 1-11 Enhanced Serial Audio Interface Signals

Signal

Name

Signal Type

State during

Reset

Signal Description

HCKR

PC2

Input or output

Input, output,

disconnected

GPIO

disconnected

High Frequency Clock for Receiver—When

programmed as an input, this signal provides a high

frequency clock source for the ESAI receiver as an

alternate to the DSP core clock. When programmed

as an output, this signal can serve as a high-

frequency sample clock (e.g., for external digital to

analog converters [DACs]) or as an additional

system clock.

Port C 2—When the ESAI is configured as GPIO,

this signal is individually programmable as input,

output, or internally disconnected.

The default state after reset is GPIO disconnected.

This input is 5 V tolerant.

HCKT

PC5

Input or output

Input, output,

disconnected

GPIO

disconnected

High Frequency Clock for Transmitter—When

programmed as an input, this signal provides a high

frequency clock source for the ESAI transmitter as

an alternate to the DSP core clock. When

programmed as an output, this signal can serve as a

high frequency sample clock (e.g., for external

DACs) or as an additional system clock.

Port C 5—When the ESAI is configured as GPIO,

this signal is individually programmable as input,

output, or internally disconnected.

The default state after reset is GPIO disconnected.

This input is 5 V tolerant.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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