Microchip Technology EVB-LAN9252-PICtail, Руководство пользователя

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EVB-LAN9252-PICtail™ Add-
On Board User’s Guide
DS500024
27A-page 2
4

2015 Microchip T
echnolo
gy Inc.
FIGURE B-1: LAN9252
Note:
OSCVSS need to connect to Chip gnd.
Power Supply Filtering
Low
E
S
R
RST#
REG_EN
RBIAS
V
D
D
12T
X
1
V
D
D
12T
X
2
VDD12TX2
VDD12TX1
OSCO
OSCI
RST#
IRQ
3V3
VDD3
3
T
XRX1
VDD3
3
T
XRX2
VDDCR
VDD33TXRX1
VDD33TXRX2
3V3
3V3
3V3 3V3
3V3
VDDCR
3V3
RXPA
RXNA
TXNA
TXPA
TXNB
TXPB
RXNB
RXPB
GPIO0
GPIO1
GPIO2
I2C2_SCL
I2C2_SDA
IRQ
C9
0.
1uF
C20 18pF
SW1
sw_pb_2P
C6
1.
0uF
DNP
FB2 2A/0.05DCR
C19
0.
1uF
C7
0.
1uF
C4
0.
1uF
C1
5
0.
1uF
C1
2
0.
1uF
C17
1.0uF
DNP
C5
0.
1uF
C21 18pF
C22
0.1uF
FB3 2A/0.05DCR
BLM18EG221SN1D
POWER
INT PORT0
INT PORT1
OSC
I2C
OTHER SIGNALS
GPIO
(Only for
Lan9252)
U1A
LAN9252
FXSDENA/FXSDA/FXLOSA
9
FXSDENB/FXSDB/FXLOSB
10
VDD3
3
T
XRX1
51
TXNA
52
TXPA
53
RXNA
54
RXPA
55
V
D
D
12T
X
1
56
RBIAS
57
V
D
D
33B
IA
S
58
V
D
D
12T
X
2
59
RXPB
60
RXNB
61
TXPB
62
TXNB
63
VDD3
3
T
XRX2
64
OSCI
1
OSCO
2
OSCVDD12
3
OSCVSS
4
REG_EN
7
ATEST/FXLOSEN
8
RST#
11
IRQ
44
TESTMODE
41
I2CSCL/EESCL/TCK
43
I2CSDA/EESDA/TMS
42
LINKACTLED0/TDO/LEDPOL0/CHIP_MODE0
48
LINKACTLED1/TDI/LEDPOL1/CHIP_MODE1
46
RUNLED/LEDPOL2/E2PSIZE
45
VDD3
3
5
VDDIO1
14
VDDIO2
20
VDDIO3
32
VDDIO4
37
VDDIO5
47
VDDCR1
6
VDDCR2
24
VDDCR3
38
GND
65
C1
6
0.
1uF
C3
1.
0uF
DNP
C8
0.
1uF
C18
0.1uF
TP2
DNP
C1
0
0.
1uF
C1
4
470pF
FB1 2A/0.05DCR
R2 12.1K
1%
Y1
25.000MHz
25ppm
1
2
C1
1.0uF
DNP
FB4
2A/0.05DCR
C1
1
0.
1uF
R1
10.0K
1/10W
1%
1
2
TP1
DNP
C1
3
1uF
C2
0.1uF