NVIDIA Jetson TX2/TX2i OEM Product Design Guide
JETSON TX2/TX2i OEM PRODUCT | DESIGN GUIDE | 20180618
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6.0 GIGABIT ETHERNET
Jetson TX2/TX2i integrates a BCM54610C1IMLG Ethernet PHY . The magnetics & RJ45 connector are implemented on the
Carrier board. Contact Broadcom for the Carrier board placement/routing guidelines.
Table 29. Gigabit Ethernet Pin Descriptions
Pin # Module Pin Name
Tegra Signal
Usage/Description
Usage on Carrier
Board
Direction
Pin Type
E47
GBE_LINK_ACT#
−
GbE RJ45 connector Link ACT (LED0)
LAN
Output
CMOS
–
3.3V tolerant
F50
GBE_LINK100#
−
GbE RJ45 connector Link 100 (LED1)
Output
F46
GBE_LINK1000#
−
GbE RJ45 connector Link 1000 (LED2)
Output
E49
GBE_MDI0
–
−
GbE Transformer Data 0
–
Bidir
MDI
E48
G
−
GbE Transformer Data 0+
Bidir
F48
GBE_MDI1
–
−
GbE Transformer Data 1
–
Bidir
F47
G
−
GbE Transformer Data 1+
Bidir
G49 GBE_MDI2
–
−
GbE Transformer Data 2
–
Bidir
G48 G
−
GbE Transformer Data 2+
Bidir
H48 GBE_MDI3
–
−
GbE Transformer Data 3
–
Bidir
H47 G
−
GbE Transformer Data 3+
Bidir
Figure 19. Ethernet Connections
Jetson TX2/TX2i
G
GBE_MDI0
–
G
GBE_MDI1
–
G
GBE_MDI2
–
G
GBE_MDI3
–
GBE_LINK_ACT
GBE_LINK_100
GBE_LINK_1000
GBE_CTREF
E48
E49
F47
F48
G48
G49
H47
H48
E47
F50
F46
H50
Tegra
SDMMC2_HV
GbE
Tranceiver
EQOS_TXC
EQOS_TD0
EQOS_TD1
EQOS_TD2
EQOS_TD3
EQOS_TX_CTL
EQOS_RXC
EQOS_RD0
EQOS_RD1
EQOS_RD2
EQOS_RD3
EQOS_RX_CTL
EQOS_MDC
EQOS_MDIO
ENETPHY_RST
To Magnetics /
RJ45 Connector
ENETPHY_INT
AUDIO_HV
DMIC4_CLK
DMIC4_DAT
LS
1.8V
3.3V
VDD_3V3_SYS
VDD_1V8
Figure 20. Gigabit Ethernet Magnetics & RJ45 Connections
Magnetics
+
CT
–
+
CT
–
+
CT
–
+
CT
–
+
CT
–
+
CT
–
+
CT
–
+
CT
–
10nF
75
Ω
75
Ω
1nF
75
Ω
75
Ω
GBE_LED0_SPICSB
0.1uF
VDD_3V3_SLP
GBE_LED1_SPISCK
681
Ω
,1%
0.1uF
0.1uF
RJ45
1
3
5
7
2
4
6
8
14
9
10
11
12
13
TDP
TDN
RDP
RDN
TDP1
TDN1
RDP1
RDN1
100pF
G
GBE_MDI0
–
G
GBE_MDI1
–
G
GBE_MDI2
–
G
GBE_MDI3
–
GBE_LINK_ACT
GBE_LINK_100
ESD
681
Ω
,1%
VDD_3V3_SLP
10nF
10nF
10nF
Note:
The connections above match those used on the carrier board and are shown for reference.
