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Overview
Table 3
summarizes the function of the BUF18830EVM board jumpers. For most applications, Jumpers 1
through 5 are all set to the default positions.
Jumper
JMP1
JMP2
JMP3
Table 4
summarizes the function of the USB_DIG_Platform jumpers. For most applications, the default
jumper position should be used. A separate document (SBOU058) gives details regarding the operation
and design of the USB_DIG_Platform.
Jumper
JUMP1
JUMP2
JUMP3
JUMP4, JUMP5
JUMP9
JUMP10
JUMP11
JUMP13
JUMP14
JUMP17
JUMP18
(1)
CAUTION: Adjusting outside of this range will damage the EVM.
12
BUF18830EVM User Guide and Software Tutorial
Table 3. BUF18830EVM Test Board Jumper Functions
Default
Short
L
INT
Table 4. USB_DIG_Platform Jumper Functions
Default
EXT
EXT
EE ON
L, L
5V
WP ON
WP ON
REG
9V
BUS
V
DUT
Copyright © 2011–2016, Texas Instruments Incorporated
Purpose
This jumper shorts V
and AV
COM
the Open position, terminal T6 can be used to set
the V
using an external power source.
COM
2
This jumper selects the I
C A0 address selection.
2
Two separate I
C addresses can be selected,
depending upon whether JMP1 is set to high or low.
This jumper selects whether the DV
BUF18830 is connected to the V
generated from the USB_DIG_Platform or whether
the digital supply pin is connected to terminal T1,
allowing for an external supply to power the digital
circuitry. The default INT position connects the
DV
pin to the V
control signal.
DD
DUT
Purpose
This jumper selects external power or bus power.
External power is applied on J5 or T3 (9V dc). Bus
power is 5V from the USB bus. External power is
typically used because the USB Bus power is noisy.
Same as JUMP1.
This jumper determines where the TUSB3210 will
load the USB_DIG_Platform firmware upon power-
up or reset. The EE Off position is used for
development for development or firmware update.
This jumper sets the address for the USB board.
The only reason to change from the default setting
is if multiple boards are being used.
This jumper selects the voltage of the device under
test supply (V
= 5V or 3V). This jumper is
DUT
typically the only jumper that is changed for most
applications.
This write protects the firmware EEPROM.
This write protects the calibration EEPROM.
Uses the regulator output to generate the V
supply. The USB bus can be used as the V
supply.
Uses the external power (9V as opposed to the
bus).
While in the BUS position V
DUT
While in the V
position the V
RAW
connected to an external source. This configuration
allows for any value of V
between 3V and 5V.
DUT
Connects the pull-up on GPIO to the V
the V
supply.
CC
SBOU103A – April 2011 – Revised May 2016
www.ti.com
to each other. In
DD
pin on the
DD
signal
DUT
DUT
DUT
operation is normal.
supply is
DUT
(1)
supply or
DUT
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