Analog Devices ADSP-BF526 EZ-Board, Руководство пользователя

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ADSP-BF526 EZ-Board Evaluation System Manual 2-25
ADSP-BF526 EZ-Board Hardware Reference
VDDEXT Power Jumper (P11)
The VDDEXT power jumper (
P11
) is used to measure the processor’s I/O
voltage and current. By default,
JP11
is
ON
: the power flows through the
two-pin IDC header. To measure power, remove the jumper and measure
voltage across the 0.1 ohm resistor. Once voltage is measured, power can
be calculated. For more information, refer to
“Power Measurements” on
page 1-36 .
VDDMEM Power Jumper (P12)
The VDDMEM power jumper (
P12
) is used to measure the voltage and
current supplied to the memory interface of the processor. By default,
P12
is
ON
: the power flows through the two-pin IDC header. To measure
power, remove
P12
and measure voltage across the 0.1 ohm resistor. Once
voltage is measured, power can be calculated. For more information, refer
to
“Power Measurements” on page 1-36 .
VDDINT Power Jumper (P13)
The VDDINT power jumper (
P13
) is used to measure the core voltage
and current supplied to the processor core.
P13
is
ON
by default, and the
power flows through the two-pin IDC header. To measure power, remove
P13
and measure voltage across the 0.1 ohm resistor. Once voltage is mea-
sured, power can be calculated. For more information, refer to “Power
Measurements” on page 1-36 .
ETH PWR Jumpers (P21–22)
The ETH PWR jumpers (
P21—22
) disconnect the SMSC LAN8700 Ether-
net PHY from the 1.8V and 3.3V power supplies. When
P21—22
are
removed, all power is disconnected from the PHY, which is a great benefit
for low-power consumption applications that do not require Ethernet. See
“Power Architecture” on page 1-30 and “Power Saving Features” on