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Table 5
summarizes the function of the USB DIG Platform jumpers. For most applications, the default
positions should be used. A separate document (SBOU058) provides 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)
Adjusting beyond this range damages the EVM.
4
BUF12800EVM Features
This section describes some of the hardware features present on the BUF12800 Test Board.
4.1
JMP1: V
Control Setting
SD
Jumper JMP1 selects where the BUF12800 digital supply pin is connected. If JMP1 is set to the INT
position, the DVDD pin is connected to the switchable V
This voltage can be set to either +3.3 V or +5 V, depending on how JUMP9 on the USB DIG Platform is
set. While JMP1 is set to the INT position, the V
control whether the V
When JMP1 is set in the EXT position, an external supply connected to terminal T2 can be used to
provide the digital supply voltage for the BUF12800.
SBOU116A – September 2011 – Revised August 2016
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Table 5. USB DIG Platform Jumper Functions
Default
EXT
EXT
EE ON
L, L
5V
WP ON
WP ON
REG
9V
BUS
V
DUT
supply voltage is turned on or off.
DUT
Copyright © 2011–2016, Texas Instruments Incorporated
Purpose/Description
This jumper selects external power or bus power.
External power is applied on J5 or T3 (up to +9 V
DC). Bus power is +5 V from the USB. External
power is typically used because the USB bus power
introduces additional noise.
Same as JUMP1.
This jumper determines where the TUSB3210 loads
the USB DIG Platform firmware upon power-up or
reset. The EE Off position is used for development
or firmware update.
This jumper sets the address for the USB DIG
Platform board. The only reason to change from the
default is if multiple boards are being used.
This jumper selects the voltage of the device under
test supply (V
= 5 V or 3 V). This jumper is
DUT
typically the only jumper that changes 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 (9 V as opposed to the
bus)
While in the BUS position, V
While in the V
position, the V
RAW
connected to an external source. This configuration
allows for any value of V
DUT
Connects the pull-up on GPIO to the V
the V
supply.
CC
signal generated from the USB DIG Platform.
DUT
Power button on the BUF12800 software is able to
SD
BUF12800EVM Evaluation Board and Software Tutorial
BUF12800EVM Features
DUT
DUT
operation is normal.
DUT
supply is
DUT
(1)
between 3 V and 5 V.
supply or
DUT
11
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