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045-0883R Datasheet(PDF) 30 Page - Analog Devices

No. de Pieza. 045-0883R
Descripción  ADSP-BF506F EZ-KIT Lite® Evaluation System Manual
Descarga  75 Pages
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Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
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045-0883R Datasheet(HTML) 30 Page - Analog Devices

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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.


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