VBAT Pin
5.3.6 CAN
SAM E54 Xplained Pro has two CAN modules that performs communication according to ISO11898-1
(Bosch CAN specification 2.0 part A,B) and Bosch CAN FD specification V1.0.
CAN1 is connected to an on-board ATA6561 CAN physical-layer transceiver, the table below shows
connections between the ATSAME54P20A and the ATA6561.
Table 5-17. ATA6561 Connections
SAM E54 pin Function ATA6561 function Shared functionality
PB12 CAN1/TX TXD -
PB13 CAN1/RX RXD -
PC13 GPIO Standby -
5.3.7 Ethernet
ATSAME54P20A has a built-in 10/100Mbps Ethernet IEEE
®
802.3 compatible MAC with RMII interface.
The MAC also supports energy efficient Ethernet (IEEE 802.3az). SAM E54 Xplained Pro connects the
MAC to a Micrel KSZ8091RNACA RMII physical-layer transceiver (PHY), with IEEE 802.3az support,
which is connected to one RJ45 Ethernet connector.
A unique EUI-48 address is available on every SAM E54 Xplained Pro through the onboard
AT24MAC402, the EUI-48 address can be used as a MAC address for the KSZ8091RNACA. The
address is also programmed into the onboard EDBG. For more information, see Kit Specific Data.
The table below lists all pins connected from the ATSAME54P20A to the Ethernet PHY.
Info: Several of the Ethernet signals are shared with the PCC connector. This means that
there is no Ethernet support if PCC is used in an application.
Table 5-18. KSZ8061RNBW Connections
SAM E54 pin Function Ethernet function Shared functionality
PA14 GTXCK REF_CLK PCC
PA17 GTXEN TXEN PCC
PA18 GTX0 TXD0 PCC
PA19 GTX1 TXD1 PCC
PC20 GRXDV CRS_DV
PA13 GRX0 RXD0 PCC
PA12 GRX1 RXD1 PCC
PA15 GRXER RXER PCC
PC11 GMDC MDC PCC
PC12 GMDIO MDIO PCC
SAM E54 Xplained Pro
© 2017 Microchip Technology Inc.
DS70005321A-page 26
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