Analog Devices ADSP-BF592 EZ-KIT Lite, Руководство пользователя

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ADSP-BF592 EZ-KIT Lite Evaluation System Manual 2-13
ADSP-BF592 EZ-KIT Lite Hardware Reference
MIC Select Jumper (JP5)
The microphone select jumper (
JP5
) connects the
MICBIAS
signal to the
MICIN
(
JP5
on 1 and 2) or the 3.5 mm audio connector
J2
pin 3 (
JP5
on 2
and 3). See “Dual Audio Connectors (J2–3)” on page 2-19 for more infor-
mation. By default,
JP5
is installed on positions 2 and 3.
CHG Control Jumper (JP6)
The charge control jumper (
JP6)
selects the control line for the
MOSFET
signal attached to the charge rate adjustment pin of the ADP2291 linear
charger.
When no jumper is installed, the on-board pull-up holds the gate of the
MOSFET ON
. Placing a jumper on positions 1 and 2 of
JP6
enables the pro-
cessor’s flag pin (
PF5
) to control the gate of
MOSFET
. Placing a jumper on
positions 2 and 3 of
JP6
pulls the
MOSFET
gate to ground, disconnecting
the drain and the source. For more information on the ADP2291 single
cell lithium ion battery charger, see
“Power Measurements” on page 1-17 .
By default,
JP6
is installed on positions 2 and 3.
BATT Installed Jumper (JP7)
The battery installed jumper (
JP7
) serves as an indicator to the BQ27500
fuel gauge that a lithium ion battery is installed. When using the battery,
install a jumper on
JP7
before turning
ON
the battery’s power switch (
SW3
).
See “Battery Switch (SW3)” on page 2-7 for more information. By
default,
JP7
is uninstalled.
R89 Jumper (JP8)
The R89 JMP jumper (
JP8
) provides a means to short out a R89 set resis-
tor in the charge rate circuit of the single cell lithium ion battery.
JP8
bypasses R89 when installed and effectively makes a zero ohm connection.