add control-if info (PWRKEY_SW, HOMEKEY_SW) (#10)

_sidebar.md

@@ -21,4 +21,5 @@
     - [Tools](/dev/tools.md)
 - Schematic analysis
   - [KEYPAD](/schematic/keypad.md)
+  - [CONTROL I/F](/schematic/control-if.md)
 - [Forum (More info)](https://github.com/orgs/moto-penangf/discussions)

schematic/control-if.md

@@ -0,0 +1,39 @@
+# Control I/F
+Control I/F is a control interface that is used to communicate between the processor and other system components such as display controllers, cameras, memory or other peripherals.
+
+It is responsible for coordinating the communication and managing the interaction of these components, ensuring their proper operation and synchronization.
+
+## Table of contents
+
+- [PWRKEY_SW](#pwrkey_sw)
+- [HOMEKEY_SW](#homekey_sw)
+
+## PWRKEY_SW
+PWRKEY_SW does not have an easily accessible testpoint, it is connected via a 2.2K resistor to the power button and the other end to the PMIC to the “Control I/F” block.
+
+![image1.PNG](../files/assets/schematic/pwrkey_sw/image1.PNG)
+![image2.PNG](../files/assets/schematic/pwrkey_sw/image2.PNG)
+
+### Using PWRKEY_SW without testpoint?
+> [!WARNING]
+> This information has not yet been verified. It's just a theory!
+>
+> Only use this information if you know what you are doing!
+
+Since Motorola hasn't created a testpoint for us to do this, why not use the contact between the capacitor and the PWRKEY_SW line?
+
+![image3.PNG](../files/assets/schematic/pwrkey_sw/image3.PNG)
+
+## HOMEKEY_SW
+HOMEKEY_SW does not have an easily accessible testpoint, it is connected via a 2.2K resistor to the VOL+ button and the other end to the PMIC to the “Control I/F” block.
+
+![image1.PNG](../files/assets/schematic/pwrkey_sw/image1.PNG)
+![image2.PNG](../files/assets/schematic/pwrkey_sw/image2.PNG)
+
+### Using HOMEKEY_SW without testpoint?
+> [!WARNING]
+> This information has not yet been verified. It's just a theory!
+>
+> Only use this information if you know what you are doing!
+
+![image3.PNG](../files/assets/schematic/pwrkey_sw/image3.PNG)