2 Hardware Configuration
2.1 Power
The EVM board can be powered from either Micro-B VBUS pin or from an external power supply through the
barrel jack (J4). The EVM defaults to being powered from a Micro-B Receptacle VBUS (J3).
If powering the EVM from barrel jack, make sure R46 is unpopulated. When removed, a jumper will need to be
placed across JMP13 pins 1 and 2.
Note
Limit VBUS voltage and voltage from barrel jack to no more than 6 V.
2.2 Configuration Jumpers
Multiple jumpers are provided on the EVM for configuration of TUSB1004 and also for probe points.
Following is a list of 4-level jumpers which are used to configure the TUSB1004: JMP3, JMP4, JMP5, JMP6,
JMP7, JMP8, JMP9, and JMP10. The jumper position to select between the different levels is detailed in
Configuration Jumper Settings Table
Note
4-level pins are sampled on rising edge of the EN pin. Therefore, a change in any 4-level pin state will
not be applied until after the EN pin is toggled from low to high.
Table 2-1. 4-Level Configuration Jumper Settings
Jumper Position
4-Level State
Short 5 to 6
0
Short 3 to 4
R
Open
F
Short 1 to 2
1
Table 2-2. Jumpers
Jumper
Default Position
Description
JMP1
Open
TEST2/SCL.
If TUSB1004 is configured for I2C mode (MODE pin (JMP13) is floating), then this jumper
is the clock for the local I2C.
If TUSB1004 is configured for pin-strap mode, then Short 3 to 4.
JMP2
Short 3 to 4
AEQENZ/SDA.
If TUSB1004 is configured for I2C mode (MODE pin (JMP13) is floating), then this jumper
is the data for the local I2C.
If TUSB1004 is configured for pin-strap mode, then this jumper selects whether the AEQ
is enabled or not.
•
Short 1 to 2: AEQ disabled.
•
Short 3 to 4: AEQ enabled.
JMP3
Short 3 to 4
SSEQ1/A1.
If TUSB1004 is configured for I2C mode (MODE pin (JMP13) is floating), then this jumper
along with JMP6 will select the 7-bit I2C target address. Refer to theTUSB1004 data
sheet for details on the available I2C target address options.
If TUSB1004 is configured for pin-strap mode, then this jumper along with JMP6 selects
EQ settings for SSTX receivers. Refer to theTUSB1004 data sheet for details on the EQ
settings.
JMP4
Short 3 to 4
SSEQ0/A0.
If TUSB1004 is configured for I2C mode (MODE pin (JMP13) is floating), then this jumper
along with JMP5 will select the 7-bit I2C target address. Refer to theTUSB1004 data
sheet for details on the available I2C target address options.
If TUSB1004 is configured for pin-strap mode, then this jumper along with JMP5 selects
EQ settings for SSTX receivers. Refer to theTUSB1004 data sheet for details on the EQ
settings.
Hardware Configuration
TUSB1004EVM User's Guide
3
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