DSP56374PB/D View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

DSP56374PB/D

24-Bit Audio Digital Signal Processor

Motorola => Freescale 

Signal Groupings

3.8 Enhanced Serial Audio Interface_1

Table 11. Enhanced Serial Audio Interface_1 Signals

Signal

Name

Signal Type

State during Signal Description

Reset

HCKR_1

PE2

Input or output

Input, output, or

disconnected

GPIO

disconnected

High Frequency Clock for Receiver—When programmed

as an input, this signal provides a high frequency clock

source for the ESAI_1 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 E2—When the ESAI_1 is configured as GPIO, this

signal is individually programmable as input, output, or

internally disconnected.

The default state after reset is GPIO disconnected.

HCKT_1

PE5

Input or output

Input, output, or

disconnected

Internal Pull down resistor.

This input is 5 V tolerant.

GPIO

disconnected

High Frequency Clock for Transmitter—When programmed

as an input, this signal provides a high frequency clock

source for the ESAI_1 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 E5—When the ESAI_1 is configured as GPIO, this

signal is individually programmable as input, output, or

internally disconnected.

The default state after reset is GPIO disconnected.

Internal Pull down resistor.

This input is 5 V tolerant.

Freescale Semiconductor

PRELIMINARY

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