DSP56300AD View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

DSP56300AD

Digital audio applications requiring digital audio compression and decompression, sound field processing, acoustic equalization, and other digital audio algorithms.

Motorola => Freescale 

Signal

Name

HACK/

HACK

HRRQ/

HRRQ

PB15

Freescale Semiconductor, Inc.

Signal/Connection Descriptions

Host Interface (HDI08)

Table 1-9 Host Interface (Continued)

Type

State during

Reset

Signal Description

Input

Host Acknowledge—When HDI08 is

programmed to interface a single host request

host bus and the HI function is selected, this

signal is the host acknowledge (HACK) Schmitt-

trigger input. The polarity of the host

acknowledge is programmable, but is configured

as active-low (HACK) after reset.

Output

GPIO

disconnected

Receive Host Request—When HDI08 is

programmed to interface a double host request

host bus and the HI function is selected, this

signal is the receive host request (HRRQ) output.

The polarity of the host request is programmable,

but is configured as active-low (HRRQ) after

reset. The host request may be programmed as a

driven or open-drain output.

Input, output,

or

disconnected

Port B 15—When the HDI08 is configured as

GPIO, this signal is individually programmed as

input, output, or internally disconnected.

The default state after reset for this signal is

GPIO disconnected.

This input is 5 V tolerant.

MOTOROLA

DSP56362 Advance Information

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