ADP1715ARMZ-R7 datasheet(30/75 Pages) AD

30 / 75 page

LEDs and Push Buttons

1-10

ADSP-BF506F EZ-KIT Lite Evaluation System Manual

LEDs and Push Buttons

The EZ-KIT Lite provides two push buttons and three LEDs for gen-

eral-purpose I/O.

The three LEDs, labeled LED2 through LED4, are accessed via the PF0–2

GPIO ports of the processor. For information on how to program the flag

pins, refer to the ADSP-BF50x Blackfin Processor Hardware Reference

Manual.

The two general-purpose push buttons are labeled PB0 and PB1. The status

of each individual button can be read through programmable flag inputs

PF3

and PF4. The flag reads a ‘1’ when a corresponding switch is being

pressed. When the switch is released, the flag reads a ‘0’. A connection

between the push buttons and processor inputs is established through

a DIP switch, SW3. The switch should be turned off when another source is

driving the signals.

An example program is included in the ADSP-BF506F installation direc-

tory to demonstrate functionality of the LEDs and push buttons.

The LED and push button signals also are connected to the expansion

interface II; see “Expansion Interface II Connectors (P2 and P4)” on

page 2-18 and “Expansion Interface II Connector (P3)” on page 2-18.

JTAG Interface

The board contains an on-board debug agent that operates via a USB port.

The ADSP-BF506F EZ-KIT Lite receives all of its power via USB; there-

fore, no power supply is required.

For debugging, the JTAG connector (P1) allows an external emulator

(USB-ICE or HPUSB-ICE) to connect to the board, instead of the

on-board debug agent.

ADP1715ARMZ-R7 数据表(PDF) 30 Page - Analog Devices