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A DIP switch is used to drive the select line of a 1:2 mux (SN74CB3Q3257PWR) that determines the pathing of
the AM263x SoC JTAG signals.
The Control Card includes all circuitry needed for XDS110 emulation. The emulator uses a USB 2.0 micro-B
connector to interface the USB 2.0 signals that are created from the UART-USB bridge. The VBUS power from
the connector is used to power the emulation circuit so that the connection to the emulator is not lost when
power to the Control Card is removed.
The XDS110 controls two power status LED's. For more information refer to
SPRUJ09C – MARCH 2022 – REVISED FEBRUARY 2023
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Figure 4-22. JTAG Path Switch
Copyright © 2023 Texas Instruments Incorporated
Hardware Description
Power Status
LED's.
AM263x Control Card Hardware User's Guide
33
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