Uart Loopback Jumper (Jp2); Uart Enable Jumper (Jp3); Led Enable Jumper (Jp5) - Analog Devices ADSP-BF526 EZ-Board Manual

Jumpers

UART Loopback Jumper (JP2)

The loopback jumper (
UART
cessor in a loopback condition. The jumper connects the
the processor to the
required when the POST program is run to test the serial port interface.
By default,
JP2

UART Enable Jumper (JP3)

The UART enable jumper (
output enable (
stalled, the voltage translator outputs are tri-stated. When a jumper is
placed on positions 1 and 2 of
signal (
WAKEUP_OUT
When the EZ-board boots, the processor enables the voltage translator;
when the processor is in hibernate, the translator outputs are tri-stated. A
jumper on positions 2 and 3 of
puts. See "Power Architecture" on page 1-30
power saving capabilities of the ADSP-BF526 EZ-Board. By default,
is installed on positions 1 and 2.

LED Enable Jumper (JP5)

The LED enable jumper (
board through control of the voltage translator's output enable pins.
When no jumper is installed on
controls the GPIO LEDs, and the
jumper on positions 1 and 2 of
( ) to control the output enable of the translator. When the
WAKEUP_OUT
processor is not in hibernate, the translator is enabled; when the processor
is in hibernate, the translator outputs are tri-stated. Placing a jumper on
positions 2 and 3 of
tecture" on page 1-30
2-20
) is used to place the
JP2
signal of the processor. The jumper is
UART1_RX
is uninstalled.
) is a three-pin jumper that controls the
JP3
) of the voltage translator. When
OE UART1
JP3
) controls the output enable of the voltage translator.
JP3
) enables the power saving feature of the
JP5
JP5
JP5
enables the translator outputs. See
JP5
and "Power Saving Features" on page 1-35
ADSP-BF526 EZ-Board Evaluation System Manual
, the inverted copy of the
allows the translator to drive the out-
for more information on
, the voltage translator (
signals are tri-stated. Placing a
OTP_FLAG
allows the inverted
port of the pro-
UART1
line of
UART1_TX
is unin-
JP3
WAKEUP_OUT
JP3
), which
U3
signal
WAKEUP_OUT
"Power Archi-
for more