Datasheet

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7 GPIO Mode
The SN65LVCP1414 is fully controllable in GPIO. 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 SN65LVCP1414 datasheet (SLLSEC5) for a detailed description of the control signals.
Table 3. SN65LVCP1414 EVM Jumper and EQ Settings
EQ1 EQ0 EQ Gain
GND GND 000
GND Hi-Z 000
GND VCC 001
Hi-Z GND 010
Hi-Z Hi-Z 011
Hi-Z VCC 100
VCC GND 101
VCC Hi-Z 110
VCC VCC 111
DC Gain EQ Gain
EQ1/EQ0 Gain
(dB) (dB)
000 ~ 111 LOW –6 1 ~ 9
000 ~ 111 Hi-Z –6 7 ~ 17
000 ~ 111 HIGH 0 1 ~ 9
Table 4. SN65LVCP1414 EVM GPIO Mode Settings
Ref Des Symbol GPIO Mode Pin Description
High, sets the high VOD range
JMP1 VOD/CS
Low, sets the low VOD range
High, normal operation
JMP2 PD#
Low, power downs the device, inputs off and outputs disabled, resets the I
2
C
High, sets the high DC gain
JMP3 GAIN
Low, sets the low DC gain
Configures the device in I
2
C or GPIO mode of operation
JMP4 I2C_EN High, enables I
2
C mode
Low, enables GPIO mode
JMP5 EQ1/ADD1 3 level control for EQ gain
JMP6 EQ0/ADD0 3 level control for EQ gain
JMP7 EQ_MODE/ADD2 3 level control for EQ gain
High, disables driver peaking
JMP9 DRV_PK#/SCL
Low, enables driver 6 dB AC peaking
9
SLLU169–July 20112 SN65LVCP1414 Evaluation Module (EVM)
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