SAM4E-EK Evaluation Kit [USER GUIDE]

Atmel-42067C-SAM4E-EK_UserGuide_022016

1

3

13

4.3.9

Ethernet MAC 10/100 (EMAC)

The EMAC module implements a 10/100 Ethernet MAC compatible with the IEEE® 802.3 standard using

an address checker, statistics and control registers, receive and transmit blocks, and a DMA interface.

The Atmel SAM4E-EK is equipped with a MICREL KSZ8081MNX 10/100 Mbps Fast Ethernet Physical

Layer transceiver. It contains the entire physical layer functions of 100BASE-TX as defined by IEEE

802.3u.

The Ethernet interface provides MII for 100Base-TX or 10Base-TX. The MII interfaces are capable of both

10Mb/s and 100Mb/s data rates as described in the IEEE 802.3u standard. The Ethernet interface

integrates an RJ45 connector with an embedded transformer, and two status LEDs.

Figure 4-8.

Ethernet Block

4.3.10 CAN

The CAN controller provides all the features required to implement the serial communication protocol CAN

defined by Robert Bosch GmbH, the CAN specification as referred to by ISO/11898A (2.0 Part A and 2.0

Part B) for high speeds and ISO/11519-2 for low speeds. The CAN Controller is able to handle all types of

frames (Data, Remote, Error and Overload) and achieves a bit rate of 1Mbit/sec.

The Atmel SAM4E has two CAN Controller with eight Mailboxes.

SAM4E-EK connects the CAN0 and CAN1 bus to the CAN transceiver SN65HVD234 (U15 and U17).

The extension connector (J41 and J44) type is RJ12 female socket.