REF: BBONEBLK_SRM
BeagleBone Black System
Reference Manual
Rev A5.2
Page 60 of 108
6.8.2
Ethernet Connector Interface
The off board side of the PHY connections are shown in
Figure 38
below.
ACTIVE WHEN AT 100MB
ACTIVE WHEN LINK PRESENT.
BLINKS OFF DURING ACTIVITY.
GRN_C
ETH_TXD4
TXN
TXP
TCT_RCT
RXP
RXN
RBIAS
ESD_RING
C138
15pF,DNI
C139
15pF,DNI
U14
LAN8710A
QFN32_5X5MM_EP3P3MM
RBIAS
32
RXP
31
RXN
30
TXN
28
TXP
29
nINT/TXER/TXD4
18
LED2/nINTSEL
2
LED1/REGOFF
3
R137
0,1%
C140
15pF,DNI
R136
.1,0805
C141
0.022uF,10V
R135
10K,1%
R145
10K,1%
R
12
0
49
.9,
1%
R130 470,5%
R132 470,5%
P5
WE_7499010211A
TCT
5
TD+
3
TD-
6
RD+
1
RD-
2
RCT
4
YELC
11
YELA
12
GRNC
10
GRNA
9
GND
8
SHD1
13
SHD2
14
NC
7
R
12
1
49
.9,
1%
R
12
2
49
.9,
1%
R144
12.1K,1%
R
12
3
49
.9,
1%
C137
15pF,DNI
VDD_PHYA
DGND
DGND
DGND
DGND
VDD_PHYA
DGND
DGND
DGND
DGND
DGND
DGND
DGND
YELA
GRNA
YEL_C
Figure 38.
Ethernet Connector Interface
This is the same interface as is used on the BeagleBone. No changes were made in this
design for the board.