34.2 Features

  • Interface for configuring into one of the following:

    • Inter-Integrated Circuit (I2C) Two-wire Serial Interface
    • System Management Bus (SMBus™) compatible
    • Serial Peripheral Interface (SPI)
    • Universal Synchronous/Asynchronous Receiver/Transmitter (USART)
  • Single transmit buffer and double receive buffer
  • Baud-rate generator
  • Address match/mask logic
  • Operational in all Sleep modes with an external clock source
  • Can be used with DMA

The following table lists the supported features for each SERCOM instance:

Table 34-1. SERCOM Features Summary
Protocol SERCOM Instance
SERCOM0 SERCOM1 SERCOM2
SPI Yes Yes Yes
I2C (1)

Yes

High-speed mode (≤ 3,4 Mbit/s)

Yes

Fast plus Mode (≤ 1 Mbit/s)

 No
USART

Yes

including:

Hardware Handshaking

IrDA

Yes

including:

Hardware Handshaking

IrDA

Yes

including:

Hardware Handshaking

IrDA

RS-485

Auto-baud mode

LIN Client

ISO7816
USART/SPI Receive Buffer Size Two-level Four-level Two-level

Secure Pin Multiplexing (SAM L11 only)

 No Yes No
Note:
  1. I2C is not supported on all SERCOM pins. Refer to the SERCOM I2C Pins table for more details.