Datasheet

I2C Mode www.ti.com
Table 1. SN65LVCP114 EVM Pin and Jumper Functionality (continued)
Description
Ref Des Symbol
GPIO mode I2C mode
JMP10 EQ_A0 3 level control for EQ gain of port A Don't care
JMP13 EQ_B0 3 level control for EQ gain of port B Don't care
High, enables the same data on the line side
(Port C) to be output on both fabric side ports
JMP7 DIAG Don't care
(Port A & B)
Low, normal operation
JMP26 LN_EN_2 High, enables lane 2 of ports A, B & C Don't care
6 I2C Mode
The I2C mode is implemented using the SN65LVCP114 user interface software included in the CD-ROM
with the EVM. Refer to the SN65LVCP114 EVM GUI User’s Guide for details on how to use the GUI.
Table 2 shows the appropriate jumper settings on the EVM to configure the device in I2C mode. Refer to
Appendix A for jumper shunt settings.
See the SN65LVCP114 Datasheet for a detailed description of the register map.
Table 2. SN65LVCP114 EVM I2C Mode Settings
Ref Des Symbol I2C Mode Pin Settings
JMP8 I2C_A0_EQA1 Low
JMP6 I2C_A1_EQB1 Low
JMP3 I2C_A2_EQC1 Low
JMP5 PDZ High, normal operation
Low, powers down the device, inputs off and outputs disabled, resets the I2C
JMP1 I2C_SEL Configures the device in I2C or GPIO mode of operation
High, enables I2C mode
7 GPIO Mode
Although it is recommended to use the EVM in I2C mode so that the user has full control of the device
some control of the SN65LVCP114 device is available on the EVM through GPIO mode. Refer to Table 3
for the different jumper and EQ settings. Table 4 shows the appropriate jumper and default settings on the
EVM to configure and control the device in GPIO mode. Refer to Appendix A for jumper shunt settings.
See the SN65LVCP114 Datasheet for a detailed description of the control signals.
Table 3. SN65LVCP114 EVM Jumper and EQ Settings
EQ[x]0 EQ[x]1 Peaking in dB
0 0 1.3
0 HiZ 2
0 1 3.6
HiZ 0 5
HiZ HiZ 6.5
HiZ 1 8.3
1 0 10
1 HiZ 11.9
1 1 13.9
6
SN65LVCP114 Evaluation Module (EVM) SLLU160–December 2011
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