Gigabit Ethernet - Nvidia Jetson TX2 Manual

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
E47 GBE_LINK_ACT#
F50 GBE_LINK100#
F46 GBE_LINK1000#
E49 GBE_MDI0–
E48 GBE_MDI0+
F48 GBE_MDI1–
F47 GBE_MDI1+
G49 GBE_MDI2–
G48 GBE_MDI2+
H48 GBE_MDI3–
H47 GBE_MDI3+
Figure 19. Ethernet Connections
Tegra
SDMMC2_HV 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
AUDIO_HV DMIC4_DAT
DMIC4_CLK
Figure 20. Gigabit Ethernet Magnetics & RJ45 Connections
GBE_MDI0+
GBE_MDI0–
GBE_MDI1+
GBE_MDI1–
GBE_MDI2+
GBE_MDI2–
GBE_MDI3+
GBE_MDI3–
10nF
ESD
VDD_3V3_SLP
GBE_LINK_ACT
GBE_LINK_100
Note: The connections above match those used on the carrier board and are shown for reference.
JETSON TX2/TX2i OEM PRODUCT | DESIGN GUIDE | 20180618
Tegra Signal Usage/Description
− GbE RJ45 connector Link ACT (LED0)
− GbE RJ45 connector Link 100 (LED1)
− GbE RJ45 connector Link 1000 (LED2)
− GbE Transformer Data 0–
− GbE Transformer Data 0+
− GbE Transformer Data 1–
− GbE Transformer Data 1+
− GbE Transformer Data 2–
− GbE Transformer Data 2+
− GbE Transformer Data 3–
− GbE Transformer Data 3+
Jetson TX2/TX2i
Tranceiver
VDD_3V3_SYS
1.8V 3.3V
ENETPHY_RST
LS
ENETPHY_INT
VDD_1V8
Magnetics
+ +
CT CT
– –
+ +
CT CT
– –
+ +
CT CT
– –
+ +
CT CT
– –
10nF 10nF 10nF
GBE_LED0_SPICSB
GBE_LED1_SPISCK
Usage on Carrier
Board
LAN
GbE
GBE_MDI0+
GBE_MDI0–
GBE_MDI1+
GBE_MDI1–
GBE_MDI2+
GBE_MDI2–
GBE_MDI3+
GBE_MDI3–
GBE_LINK_ACT
GBE_LINK_100
GBE_LINK_1000
GBE_CTREF
VDD_3V3_SLP
TDP
75Ω
0.1uF
14
TDN
RDP
10
75Ω
RDN
TDP1
75Ω
TDN1
11
RDP1
12
75Ω
13
RDN1
1nF
0.1uF
681Ω,1%
0.1uF
681Ω,1%
NVIDIA Jetson TX2/TX2i OEM Product Design Guide
Direction
Output
Output
Output
Bidir
Bidir
Bidir
Bidir
Bidir
Bidir
Bidir
Bidir
E48
E49
F47
F48
G48
To Magnetics /
G49
RJ45 Connector
H47
H48
E47
F50
F46
H50
RJ45
9
1
2
3
4
5
6
7
8
100pF
Pin Type
CMOS – 3.3V tolerant
MDI
36