Analog Devices ADSP-BF526 EZ-Board Manual page 54

Power Architecture

Leaving
the processor. See the ADSP-BF522/523/524/525/526/527 Blackfin
Embedded Processor Data Sheet.
In USB host mode, if the host must provide 5V to a device, the
pin must be set low to turn on the p-channel mosfet (
of the processor to the mosfet, set
PG13
.
SW20.6 ON
The lithium ion battery leads are inserted into the
switch connects the battery to the EZ-Board when
SW22
change the battery, press in the white tabs and slide out the battery lead.

The EZ-Board is intended to be used at room temperature
(approximately 21
An ADP2291 lithium ion battery charger IC charges the 740 mAh bat-
tery. The charge rate is selected based on a jumper placement and whether
the battery is charging from a wall adaptor or from a USB port. See
Table 1-4 for details.
The lithium battery is monitored by the BQ27500 fuel gauge (
battery statistics can be read from the fuel gauge, including time to empty,
current voltage, and current consumption rate.
connect the fuel gauge LED signals.
TWI signals from the processor and fuel gauge. For more information
about , refer to
SW4
ple program in the POST directory of the ADSP-BF526 EZ-Board
installation demonstrates how to use the fuel gauge.

Change jumper and switch settings only when power is
1-32
when not writing to the OTP memory can damage
JP16 ON
o
C).
"Gauge Signals Switch (SW4)" on page
ADSP-BF526 EZ-Board Evaluation System Manual
U23
,
SW20.2 OFF SW20.5 OFF
P24
positions 1 and 2 dis-
SW4
positions 3 and 4 disconnect the
SW4
flag
PG13
). To connect
, and
connector. The
is . To
SW22 ON
). All
U38
2-11. An exam-
.
OFF