Update sdd

Author: moisesmata

FprimeZephyrReference/Components/LoadSwitch/docs/LoadSwitch.svg

@@ -1,66 +1,53 @@
 # Components::LoadSwitch
 
-A generic load switch for controlling power to components
+![LoadSwitch](LoadSwitch.svg)
 
-## Usage Examples
-Add usage examples here
+## Overview
 
-### Diagrams
-Add diagrams here
+The `LoadSwitch` component is an active F' component that controls a single load switch output
+through the `gpioSet` output port (connected to the platform's GPIO driver). It exposes two
+async commands to turn the switch on and off, telemetry reporting the current state, and an
+async `Reset` input which toggles the switch (off, short delay, on).
 
-### Typical Usage
-The load switch would be used whenever a sensor is to be turned on or off.
+## Responsibility
 
-## Class Diagram
-Add a class diagram here
+- Control the power rail for a connected peripheral by asserting/deasserting a GPIO.
+- Report state changes via an event and telemetry channel.
 
-## Port Descriptions
-| Name | Description |
-|---|---|
-| Status | Boolean value displaying whether the load switch is on or not. |
+## External interface
 
-## Component States
-| Name  | Description                          |
-|-------|--------------------------------------|
-| Off   | No power to the component            |
-| On    | Power supplied to the component      |
-| Error | An error occurred in the load switch |
+### Commands
 
-## Sequence Diagrams
-Add sequence diagrams here
+| Name | Description | Implementation notes |
+|---|---|---|
+| TURN_ON | Turn on the associated power rail | `TURN_ON_cmdHandler` sets the gpio via `gpioSet_out(0, Fw::Logic::HIGH)`, emits `StatusChanged` (ON), updates `IsOn` telemetry, replies OK. |
+| TURN_OFF | Turn off the associated power rail | `TURN_OFF_cmdHandler` sets the gpio via `gpioSet_out(0, Fw::Logic::LOW)`, emits `StatusChanged` (OFF), updates `IsOn` telemetry, replies OK. |
 
-## Parameters
-| Name | Description |
-|---|---|
-|---|---|
+### Telemetry
 
-## Commands
-| Name | Description |
-|---|---|
-| On | Turn on power to the component |
-| Off | Turn off power to the component |
+| Name | Type | Description |
+|---|---:|---|
+| IsOn | Fw.On | Current power state; written after commands and on Reset handling. |
 
-## Events
-| Name | Description |
-|---|---|
-| StatusChanged | Emits event whenever the status of the load switch changes |
+### Events
 
-## Telemetry
-| Name | Description |
-|---|---|
-| IsOn | Returns whether the load switch is supplying power to the component or not |
+| Name | Severity | ID | Format |
+|---|---|---:|---|
+| StatusChanged | activity high | 1 | "Load switch state changed to {}" |
 
-## Unit Tests
-| Name | Description | Output | Coverage |
-|---|---|---|---|
+The component logs the `StatusChanged` event whenever the switch transitions due to a command or a Reset.
+
+### Ports
+
+| Port name | Direction | Port type | Notes |
 |---|---|---|---|
+| gpioSet | output | Drv.GpioWrite | Used to write the physical GPIO. Implementation always uses index 0 (`gpioSet_out(0, ...)`). |
+| Reset | input (async) | Fw.Signal | Causes the component to perform a hardware reset sequence: LOW -> wait 100ms -> HIGH. |
 
-## Requirements
-| Name | Description | Validation |
-|---|---|---|
-|---|---|---|
 
 ## Change Log
+
 | Date | Description |
 |---|---|
 | 10-22-2025 | Sarah, Kevin, and MoMata's first commit |
+| 11-07-2025 | Updated SDD to match implementation in `LoadSwitch.cpp/.hpp/.fpp` (commands, telemetry, event, ports, reset behavior). |