Table 4-18 SD/MMC Socket J600 Signal Descriptions
Pin Mnemonic
SAM E70 Pin
Signal Description
Shared WIth
1
DAT3
PA27
Data bit (MCDA3)
2
CMD
PA28
Command line (MCCDA)
3
VSS
--
Common ground
--
4
VCC
--
Supply voltage 3.3V
--
5
CLK
PA25
Clock / command line (MCCK)
6
VSS
--
Common ground
--
7
DAT0
PA30
Data bit (MCDA0)
8
DAT1
PA31
Data bit (MCDA1)
9
DAT2
PA26
Data bit (MCDA2)
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