Tables added in the datasheets

Author: mcmchris

content/hardware/04.pro/boards/portenta-c33/datasheets/datasheet.md

@@ -396,6 +396,18 @@ The High-Density connectors pinout is shown in Figure 2.
 
 **![Figure 2. Portenta C33 pinout (High-Density connectors)](assets/Portenta_C33_Pinout_HDC.png)**
 
+#### I2C Communication Availability
+
+The Portenta C33 has three hardware I2C ports, two of them are shared between some board internal components and one is free. In order to facilitate custom carriers development for the Portenta family, we detail the I2C interfaces availability in the table below: 
+
+| HD Connector      | **Interface Name**     | **Pins on HD**                         |    **Free/Shared**     | **Peripherals (Address)**    |
+|-------------------|------------------------|----------------------------------------|------------------------|-----------------------------|
+| J1                | I2C1                   | 43-45                                  |          Free          |                             |
+| J1                | I2C0                   | 44-46                                  |          Free          |                             |
+| J2                | I2C2                   | 45-47                                  |          Free          |                             |
+
+***Any I2C port is recommended to use as they are free to use without restrictions.***
+
 <div style="page-break-after: always;"></div>
 
 ### Block Diagram

content/hardware/04.pro/boards/portenta-c33/downloads/ABX00074-datasheet.pdf

@@ -617,6 +617,18 @@ Laboratory equipment, Computer vision
 | SWDIOSWCK SWO     | High Density Connector | ADC                                    | High Density Connector |
 | SDC               | High Density Connector | RESET                                  | Other Pin              |
 
+#### I2C Communication Availability
+
+The Portenta H7 series has three hardware I2C ports, two of them are shared between some board internal components and one is free. In order to facilitate custom carriers development for the Portenta family, we detail the I2C interfaces availability in the table below: 
+
+| HD Connector      | **Interface Name**     | **Pins on HD**                         |    **Free/Shared**     | **Peripherals (Address)**                                                       |
+|-------------------|------------------------|----------------------------------------|------------------------|--------------------------------------------------------------------------------|
+| J1                | I2C1                   | 43-45                                  |          Shared        | Secure Element (0x48)<br /> PMIC (0x08)<br /> ANALOGX (0x54, 0x58, 0x70, 0x72, 0x7A, 0x7E, 0x48) |
+| J1                | I2C0                   | 44-46                                  |          Free          |                        |
+| J2                | I2C2                   | 45-47                                  |          Shared        | Camera (D1P-D1N)       |
+
+***The use of the I2C0 port is recommended as it is free to use without restrictions.***
+
 ### Wake Up Signals/External Relay Commands
 
 ![MKR format Headers pinout](assets/portentaH7_mkr_pinouts.png)