Single Ended Bus Modification Operational Modes - Texas Instruments THVD1424 User Manual

Board Description

3.1.1.4 Single Ended Bus Modification Operational Modes

There are a few options with respect to the single ended data and control signals for modification on this EVM.
Jumpers J1 through J4 all contain pads that are blank by default. For D, DE, and /RE signals there are 0603
sized pads for either pull-up or pull-down resistors to have a default logic on these pins with the added benefit of
still being able to external signals to this pin. The R pin also contains a pull-up resistor 0603 sized, as is common
in UART based applications, as well as a 0603 sized pad to ground for a capacitive load in case testing requires
capacitive loading on the R pin. A summary of possible single ended signal pathway modifications on the EVM
are in Table 3-5.
Associated Jumper / Signal
J1 / R
J1 / R
J2 / /RE
J2 / /RE
J3 / DE
J3 / DE
J4 / D
J4 / D
10 THVD1424 Evaluation Module (EVM) User Guide
Table 3-5. Single Ended Pins Modification Table
Pad ID
R2
C1
R5
R6
R8
R9
R11
R12
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Comment
Pull Up Resistor Pad
Capacitive Load Pad
Pull Up Resistor Pad
Pull Down Resistor Pad
Pull Up Resistor Pad
Pull Down Resistor Pad
Pull Up Resistor Pad
Pull Down Resistor Pad
SLLU356 – SEPTEMBER 2022
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