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

HRW

HRD/

HRD

PB11

HDS/

HDS

HWR/

HWR

PB12

Freescale Semiconductor, Inc.

Signal/Connection Descriptions

Host Interface (HDI08)

Table 1-9 Host Interface (Continued)

Type

State during

Reset

Signal Description

Input

Host Read/Write—When HDI08 is programmed

to interface a single-data-strobe host bus and the

HI function is selected, this signal is the Host

Read/Write (HRW) input.

Input

GPIO

disconnected

Host Read Data—When HDI08 is programmed

to interface a double-data-strobe host bus and

the HI function is selected, this signal is the host

read data strobe (HRD) Schmitt-trigger input. The

polarity of the data strobe is programmable, but is

configured as active-low (HRD) after reset.

Input, Output,

or

Disconnected

Port B 11—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.

Input

This input is 5 V tolerant.

Host Data Strobe—When HDI08 is programmed

to interface a single-data-strobe host bus and the

HI function is selected, this signal is the host data

strobe (HDS) Schmitt-trigger input. The polarity

of the data strobe is programmable, but is

configured as active-low (HDS) following reset.

Input

GPIO

disconnected

Host Write Data—When HDI08 is programmed

to interface a double-data-strobe host bus and

the HI function is selected, this signal is the host

write data strobe (HWR) Schmitt-trigger input.

The polarity of the data strobe is programmable,

but is configured as active-low (HWR) following

reset.

Input, output,

or

disconnected

Port B 12—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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