Table 4-18 SD/MMC Socket J600 Signal Descriptions
Pin Mnemonic SAM E70 Pin Signal Description Shared WIth
1 DAT3 PA27 Data bit (MCDA3) Camera Connector
2 CMD PA28 Command line (MCCDA) J507 Header (Arduino Shield)
3 VSS -- Common ground --
4 VCC -- Supply voltage 3.3V --
5 CLK PA25 Clock / command line (MCCK) J507 Header (Arduino Shield)
6 VSS -- Common ground --
7 DAT0 PA30 Data bit (MCDA0) J507 Header (Arduino Shield)
8 DAT1 PA31 Data bit (MCDA1) J507 Header (Arduino Shield)
9 DAT2 PA26 Data bit (MCDA2) J507 Header (Arduino Shield)
10 C/D PC16 Card Detect --
11 WP -- Protect --
12 SHELL -- Connected to Ground --
13 SHELL -- Connected to Ground --
14 SHELL -- Connected to Ground --
15 SHELL -- Connected to Ground --
4.4.6. Ethernet
The ATSAME70Q21 has a built-in 10/100 Mbps Ethernet IEEE 802.3 compatible MAC with RMII
interface. The SAME70-XPLD connects the MAC to a Micrel KSZ8081RNACA RMII physical-layer
transceiver (PHY), which is connected to one RJ45 Ethernet connector.
A unique EUI-48
™
address is available on every SAME70-XPLD through the on-board AT24MAC402, the
EUI-48 address can be used as a MAC address for the KSZ8081RNACA. The address is also
programmed into the on-board EDBG.
Table 4-19 KSZ8081RNACA Connections on page 35 lists all pins connected from the SAM E70 to the
Ethernet PHY.
Info: Several of the Ethernet signals are shared with the trace connector and thus there is no
Ethernet support if trace is used in an application.
Atmel SAME70-XPLD [USER GUIDE]
Atmel-44050A-SAME70-XPLD_User Guide-12/2015
34
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