UG-277 datasheet(5/24 Pages) AD

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SDP User Guide

UG-277

Rev. B | Page 5 of 24

HARDWARE DESCRIPTION

This section describes the hardware design of the EVAL-SDP-

CB1Z board.

The following topics are covered:

•

LEDs—This section describes the SDP on-board LEDs.

•

Connector Details—This section details the pin

assignments on the 120-pin connectors.

•

Power—This section lists power requirements of the SDP

and identifies connector power inputs and output pins.

•

Daughter board design guidelines—This section provides

guidelines on how to design daughter boards for use with

the SDP.

•

Mechanical specifications—This section provides

dimensional information.

LEDS

There are two LEDs located on the SDP-B board (see Figure 2).

POWER LED

The green power LED indicates that the SDP-B board is

powered. This is not an indication of USB connectivity between

the SDP-B and the PC.

POWER

CON B

CON C

STATUS

LED

Figure 2. SDP-B Board LEDs

STATUS LED

The orange status LED is an LED used as a diagnostic tool for

evaluation application developers. When there are two or more

identical SDP controller board and daughter board combin-

ations connected to the PC simultaneously, the status LED

flashes during the connect routine to help the user identify

which board they will communicate with.

CONNECTOR DETAILS

The SDP-B board contains three Hirose FX8-120P-SV1(91),

120-pin header connectors. Connector A and Connector B share

identical pinouts and through these connectors, the peripheral

communication interfaces of ADSP-BF527 Blackfin processor are

exposed. The exposed peripherals are

•

SPI

•

SPORT

•

I2C/TWI

•

GPIO

•

Asynchronous parallel

•

PPI

•

UART

•

Timers

In addition, included on the connector specification are input

and output power pins, ground pins, and pins reserved for

future use. For further details on the peripheral interfaces,

including timing diagrams, see the ADSP-BF52x Blackfin

Processor Hardware Reference.

Connector C exposes the entire Blackfin memory space, but is

not used as part of the SDP platform.

Connector Pin Assignments

The connector pin assignments for Connector A and

Connector B have been defined independently of the any

internal pin sharing that occurs on the Blackfin processor.

Table 1 lists the connector pins and identifies the functionality

assigned to each connector pin for Connector A and

Connector B on the SDP-B board.

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