SAMA5D3x-EK User Guide
5-17
11180A–ATARM–30-Jan-13
5.3.8
Tri-Speed Ethernet PHY
The SAMA5D3 series-CM board is equipped with a MICREL PHY devices (MICREL KSZ9021/31) oper-
ating at 10/100/1000 Mbps. The board supports RGMII interface mode. The Ethernet interface consists
of 4 pairs of low voltage differential pair signals designated from GRX± and GTx± plus control signals for
link activity indicators. These signals can be used to connect to a 10/100/1000 BaseT RJ45 connector
integrated on the main board.
For more information about the Ethernet controller device, refer to the MICREL KSZ89021RN controller
manufacturer's datasheet.
Figure 5-15. EMBEST GEthernet ETH0
G125CK
GTX0
GTX1
GTX2
GTX3
GRX0
GRX1
GRX2
GRX3
GTXCK
GTX_CTL
GRXCK
GRX_CTL
GMDC
GMDIO
INT_GETHR
PB4
PB5
PB6
PB7
PB3
PB2
PB1
PB0
PB16
PB11
PB13
PB9
PB8
PB25
PB17
PB18
XI
XO
XI
XO
VDDIOP1
DVDDL
AVDDL
AVDDH
AVDDL_PLL
VDDIOP1
VDDIOP1
VCC_3V3
AVDDL_PMOS
AVDDL_PLL
AVDDL
DVDDL
VDDIOP1
VDDIOP1
LED1
{7}
LED2
{7}
PB[0..31] {5,7}
NRST
{2,3,7}
E
{7}
ETH0_TX1-
{7}
E
{7}
ETH0_RX1-
{7}
E
{7}
ETH0_TX2-
{7}
E
{7}
ETH0_RX2-
{7}
+
C107
10uF
+
C107
10uF
+
C96
10uF
+
C96
10uF
R84
27R
R84
27R
C105
10nF
C105
10nF
R89
4.7K
R89
4.7K
R85
27R
R85
27R
L10
180ohm at 100MHz
L10
180ohm at 100MHz
1
2
C101
10nF
C101
10nF
C106
10nF
C106
10nF
RR26B
27R
RR26B
27R
2
7
C117
10nF
C117
10nF
R102
27R
R102
27R
C115
10uF
C115
10uF
C114
20pF
C114
20pF
+
C104
10uF
+
C104
10uF
RR26A
27R
RR26A
27R
1
8
RR25D
27R
RR25D
27R
4
5
R77
27R
R77
27R
R80
27R
R80
27R
RR25C
27R
RR25C
27R
3
6
C102
10nF
C102
10nF
C120
10nF
C120
10nF
R78
4.7K
R78
4.7K
Y3
25MHz
Y3
25MHz
1
2
3
4
L11
180ohm at 100MHz
L11
180ohm at 100MHz
1
2
RR25B
27R
RR25B
27R
2
7
R95
4.7K
R95
4.7K
C100
10nF
C100
10nF
RR25A
27R
RR25A
27R
1
8
L9
180ohm at 100MHz
L9
180ohm at 100MHz
1
2
RR24D
27R
RR24D
27R
4
5
R96
4.7K
R96
4.7K
L14
LQM2HPN1R0MG0L
L14
LQM2HPN1R0MG0L
RR24C
27R
RR24C
27R
3
6
L12
180ohm at 100MHz
L12
180ohm at 100MHz
1
2
+
C116
47uF
+
C116
47uF
C118
22uF
C118
22uF
+
C103
10uF
+
C103
10uF
R33
10K 1%
R33
10K 1%
R79
1K
R79
1K
R32
2K 1%
R32
2K 1%
R97
4.7K
R97
4.7K
R90
4.7K
R90
4.7K
C94
10nF
C94
10nF
R81
27R
R81
27R
C108
10nF
C108
10nF
C97
10nF
C97
10nF
C95
10nF
C95
10nF
C111
10nF
C111
10nF
C112
10nF
C112
10nF
C109
10nF
C109
10nF
C98
10nF
C98
10nF
+
C93
10uF
+
C93
10uF
R82
27R
R82
27R
C113
10nF
C113
10nF
R83
4.99K 1%
R83
4.99K 1%
MN13
SC189ASKTRT
MN13
SC189ASKTRT
VIN
1
GND
2
EN
3
VOUT
4
LX
5
KSZ9021RN
48-pin QFN
MN17
KSZ9021RN
KSZ9021RN
48-pin QFN
MN17
KSZ9021RN
VSS_
PS
13
LE
D2
15
DV
DDH
16
LE
D1
17
DV
DDL
14
TXD
0
19
TXD
1
20
TXD
2
21
TXD
3
22
DV
DDL
18
DV
DDL
23
GTX
_CLK
24
TX_EN
25
DVDDL
26
RXD3
27
VSS
29
DVDDL
30
RXD1
31
RXD0
32
RX_DV
33
DVDDH
34
RX_CLK
35
MDC
36
MD
IO
37
IN
T_N
38
DV
DDL
39
DV
DDH
40
CLK
125_NDO
41
R
E
SET_N
42
LDO_O
43
XO
45
XI
46
AVD
D
H
47
ISET
48
AVDDH
1
TXRXP_A
2
TXRXM_A
3
TXRXP_B
5
TXRXM_B
6
TXRXP_C
7
TXRXM_C
8
TXRXP_D
10
TXRXM_D
11
AVDDH
12
RXD2
28
A
V
DDL_P
LL
44
P_
GN
D
49
AVDDL
4
AVDDL
9
R87
27R
R87
27R
C110
10nF
C110
10nF
R88
27R
R88
27R
C119
20pF
C119
20pF
C99
10nF
C99
10nF
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