Table 2-2. Jumpers (continued)
Jumper
Default Position
Description
JMP5
Open
EQCFG.
If TUSB1004 is configured for I2C mode (MODE pin (JMP13) is floating), then this jumper
must be left floating for normal operation.
If TUSB1004 is configured for pin-strap mode, then this jumper will select EQ options for
SSTX receivers and CRX receivers. Refer to theTUSB1004 data sheet for details.
JMP6
Open
AEQCFG.
Selects upper limit for AEQ. Refer to theTUSB1004 data sheet for details.
JMP7
Open
CEQ1.
If TUSB1004 is configured for pin-strap mode, then this jumper along with JMP10 selects
EQ settings for CRX receivers. Refer to theTUSB1004 data sheet for details on the EQ
settings.
JMP8
Open
CEQ0.
If TUSB1004 is configured for pin-strap mode, then this jumper along with JMP10 selects
EQ settings for CRX receivers. Refer to theTUSB1004 data sheet for details on the EQ
settings.
JMP9
Open
VIO_SEL.
Selects whether local I2C interface is at 1.8 V or 3.3 V signalling levels. The default is 3.3
V. Short pins 1 and 2 to select 1.8 V.
JMP10
Short 1 to 2
MODE.
Selects between pin-strap and I2C mode. The default is pin-strap mode.
•
Short 1 to 2: Pin-strap mode
•
Open: I2C mode.
JMP11
Open
SLP_S0#.
JMP12
Open
EN.
The EN will enable or disable the TUSB1004.
JMP13
Open
Power for TUSB1004.
Selects whether TUSB1004 is powered from J1 VBUS, J3 VBUS or 5 V barrel jack. The
default is power from J3 USB VBUS. Shorting between position 1 and 2 will select the 5 V
barrel jack.
JMP14
Open
The local I2C voltage pull-up option. The default is local I2C pull-ups are connected to
TUSB1004s 3.3 V VCC supply. Removing R47 allows for feeding external DC supply for
local I2C.
Hardware Configuration
4
TUSB1004EVM User's Guide
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