Evaluation Board Schematics
2015
Microchip Technology Inc.
D
S
5
0002356B-p
age 27
FIGURE B-2:
EVB-LAN9252-ADD-ON SCHEMATIC COPPER MODE INTERFACE
Note:
Capacitors C28 through C31 are optional for EMI purposes
and are not populated on the LAN9252 evaluation board.
These capacitors are required for operation in an EMI
constrained environment.
LED1 (Green) = LINK/ACT
LED2 (Yellow) = SPEED
Note:
Capacitors C23 through C26 are optional for EMI purposes
and are not populated on the LAN9252 evaluation board.
These capacitors are required for operation in an EMI
constrained environment.
LED1 (Green) = LINK/ACT
LED2 (Yellow) = SPEED
RUNLED
GPIO0 = LINKACTLED0/TDO/LEDPOL0/CHIP_MODE0
GPIO1 = LINKACTLED1/TDI/LEDPOL1/CHIP_MODE1
GPIO2 = RUNLED/LEDPOL2/E2PSIZE
I2C EEPROM
I2C EEPROM Higher size
Above 16K(2K X 8)
GPIO0
GPIO1
VDD33TXRX2
VDD33TXRX1
3V3
3V3
3V3
TXPA
TXNA
RXPA
RXNA
TXPB
TXNB
RXPB
RXNB
GPIO0
GPIO1
I2C2_SDA
I2C2_SCL
GPIO2
R2
3
2K
R10
1K
C29
10pF
50V
5%
DNP
R25
10.0K
1
2
XMIT
RCV
75
75
75
1000 pF
2 kV
RJ45
1
4 & 5
2
3
7 & 8
6
75
GRN
YEL
T1
Pulse J0011D01BNL
RD+
3
RXCT
5
RD-
6
TD+
1
TXCT
4
TD-
2
CHS GND
8
GND
13
GND1
14
MT
G
15
MT
G1
16
NC
7
C
10
A
9
C1
11
A1
12
R2
4
2K
C23
10pF
50V
5%
DNP
C31
10pF
50V
5%
DNP
R8
0
C33
0.1uF
R6
49.9
1/10W
1%
R16
0
RES1210
D1
GRN
1
A
2
C
R14
49.9
1/10W
1%
C32
0.022uF
50V
10%
R26
10.0K
1
2
C26
10pF
50V
5%
DNP
R3
1K
R18
1K
R9
0
RES1210
XMIT
RCV
75
75
75
1000 pF
2 kV
RJ45
1
4 & 5
2
3
7 & 8
6
75
GRN
YEL
T2
Pulse J0011D01BNL
RD+
3
RXCT
5
RD-
6
TD+
1
TXCT
4
TD-
2
CHS GND
8
GND
13
GND1
14
MT
G
15
MT
G1
16
NC
7
C
10
A
9
C1
11
A1
12
C25
10pF
50V
5%
DNP
U2
24FC512
GND
4
VCC
8
SDA
5
SCL
6
A0
1
A1
2
A2
3
WP
7
R7
49.9
1/10W
1%
C30
10pF
50V
5%
DNP
R11
49.9
1/10W
1%
C24
10pF
50V
5%
DNP
R5
49.9
1/10W
1%
R12
49.9
1/10W
1%
C28
10pF
50V
5%
DNP
R1
9
4.
7K
C27
0.022uF
50V
10%
R15
0
R4
49.9
1/10W
1%
R13
49.9
1/10W
1%
R17
10.0K
1
2