Design Guide

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
Optional cap: C6A1
value 6pF - 12pF if
needed for magnetics
Chassis GND
(should cover part
of magnetics)
Layout note:
Place 100 Ohm resistor
close to 82562EM
No Stuff
Layout note:
Transmit/Receive pairs
need to be 50 ohms
Bulk caps should be 4.7uF or higher.
If LAN is enabled,
PM_LANPWROK waits for
PM_PWROK to go high and
stays high in S3.
82562EM Testpoint Header
Magnetics and LED resistors
are integrated into RJ-45
NO_STUFF
4.401
LAN Interface (82562EM)
A
30 50Monday, September 15, 2003
Intel 855GM/GME CRB <Doc>
Title
Size Document Number Rev
Date: Sheet
of
Project:
LAN_RB10
LAN_RB100
LAN_X2LAN_TOUT
+V3.3_L_LAN
LAN_ADV
LAN_TCK
LAN_TESTEN LAN_X1
LAN_SPDLED#
LAN_ACTLED#
LAN_LILED#
LAN_RDN
TDC
LAN_RDP
LAN_TDN
LAN_TDP
PM_LANPWROK18,32
LAN_RST18
LAN_TXD018
LAN_TXD218
LAN_TXD118
LAN_JCLK18
LAN_RXD218
LAN_RXD018
LAN_RXD118
+V3.3 15,18..20,23,27,32,35,37,38,44,45
+V3.3_LAN
+V3.3_LAN
+V3.3_LAN
C6A2
0.1UF
C6A4
4.7UF
C6A3
0.1UF
C6A7
4.7UF
C6A11
0.1UF
R6A4
121_1%
C6A10
0.1UF
Platform LAN
Connect
U6A1
82562EM
48
1
47
46
2
45
3
44
43
4
42
5
41
40
6
39
7
38
37
8
36 9
35
34
10
33
11
32
31
12
30
13
29
28
14
27
15
26
25
16
17
18
1920
21
22 23 24
VSS1
VCC1
X2
X1
VCCA_1
JTXD2
VSSA_2
JTXD1
JTXD0
RBIAS10
JRSTSYNC
RBIAS100
ADV10
VCCP_1
VSSA2
JCLK
VCCA2
VSSP_1
JRXD2
VSS2
VCCP_2
VCCT_1
JRXD1
JRXD0
TDP
VSSP_2
TDN
ACTLED
SPDLED
VCCT_2
ISOL_TCK
VSS3
ISOL_EX
ISOL_TI
VCCT_3
LILED
RDP
TOUT
VCC2
RDN
VCCT_4
VSS4
VCCR1VSSR1
TESTEN
VSSR2 VCCR2 VSS5
R6A1
0.01_1%
R6A2 619_1%
C6A6
0.1UF
R6A3 549_1%
C6A5
4.7UF
C6A8
22PF
L6A1
4.7UH
GRN
YLW
J5A1A
STACKED_RJ45_USB
9
10
11
12
13
14
15
16
17
18
19
20
28
27
26
25
24
23
22
21
TDP
TDN
RDP
TDC2
TDC1
RDN
RXC
GND9
LED_PWR
SPEED LED
ACT_LED
LINK_LED
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
Y5A1
25MHZ
J6A1
1 2
C6A9
22PF
R6A5
100_1%
C6A1
NO_STUFF_10PF
R6A6
10K
Q6A1
BSS138
3
1
2
R6M1
100