ALLPCB
Overview
The XDS100v3 is a debug probe from Texas Instruments used for embedded system development and debugging. This article describes the XDS100v3 pin definitions.
The XDS100v3 consists of a main controller and target interface circuitry. The main controller manages the probe's operations, while the interface circuitry establishes the connection to the target under test. This arrangement enables non?intrusive debugging and emulation of the target system without disrupting normal operation.
Pin Definitions
Pin assignments are closely tied to functionality. The following sections list the detailed pin definitions and functions for the XDS100v3.
Debug Pins
The probe connects to the target via debug pins for communication. Debug pins include the debug clock pin, debug data pin(s), and debug control pin(s). The debug clock provides a timing signal to synchronize the probe and the target. Debug data pins exchange information, such as reading target status and register values. Debug control pins control target execution state, for example reset, halt, and single stepping.
Target Power Pins
The XDS100v3 may connect to the target's power pins to obtain the supply voltage required for operation or to reference the target voltage. These typically include VCC and ground pins.
JTAG Pins
JTAG is a standardized debug and test interface commonly used in embedded systems. The XDS100v3 uses a JTAG interface to connect to the target. JTAG pins include TCK (clock), TDI (data in), TDO (data out), and TMS (mode/status). These pins enable debug and emulation operations on the target.
Probe Supply Pins
Besides connecting to the target's power pins, the XDS100v3 requires its own supply pins to power the probe itself. Supply pins include the probe power input and ground.
Clock Pins
Clock pins provide timing for the probe's main controller. They typically include an input clock pin for receiving an external clock and an output clock pin for providing the probe's clock signal.
Data Pins
Data pins are used for data exchange and communication with the probe. They typically include multiple input and output pins for data transfer.
Summary
In summary, the XDS100v3 pin assignments include debug pins, target power pins, JTAG pins, probe supply pins, clock pins, and data pins. These pins provide connectivity and communication with the target for embedded system debugging and emulation.
