Texas Instruments THVD1424, Руководство пользователя

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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 .
Table 3-5. Single Ended Pins Modification Table
Associated Jumper / Signal Pad ID Comment
J1 / R R2 Pull Up Resistor Pad
J1 / R C1 Capacitive Load Pad
J2 / /RE R5 Pull Up Resistor Pad
J2 / /RE R6 Pull Down Resistor Pad
J3 / DE R8 Pull Up Resistor Pad
J3 / DE R9 Pull Down Resistor Pad
J4 / D R11 Pull Up Resistor Pad
J4 / D R12 Pull Down Resistor Pad
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10 THVD1424 Evaluation Module (EVM) User Guide SLLU356 – SEPTEMBER 2022
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