Datasheet

PIC32MZ Embedded Connectivity (EC) Starter Kit User’s Guide DS70005147B-page 24 © 2013-2014 Microchip Technology Inc.
FIGURE A-6: LAN8740 PHY DAUGHTER BOARD SCHEMATICS
RXD1
RXD0
RX_ER
MDIO
MDC
TX_EN
TXD0
TXD1
CRS_DV
nRST
+3.3V
CLK_IN
0.1uF
C6
nINT
GND
VDD2A
1
LED2/nINT/nPME/nINTSEL
2
LED1/nINT/nPME/REGOFF
3
XTAL2
4
XTAL1/CLKIN
5
VDDCR
6
RXCLK/PHYAD1
7
RXD3/PHYAD2
8
RXD2/nPME/RMIISEL
9
RXD1/MODE1
10
RXD0/MODE0
11
VDDIO
12
RXER/RXD4/PHYAD0
13
CRS
14
COL/CRS_DV/MODE2
15
MDIO
16
MDC
17
nINT/TXER/TXD4
18
nRST
19
TXCLK
20
TXEN
21
TXD0
22
TXD1
23
TXD2
24
TXD3
25
RXDV
26
VDD1A
27
TXN
28
TXP
29
RXN
30
RXP
31
RBIAS
32
PAD
33
V
D
D
2
A
L
ED2
/
nI
N
T/
nPME
/
nI
N
TS
EL
L
ED1
/
n
I
N
T/
n
PME
/
RE
G
O
F
F
X
TA
L2
X
TA
L
1
/
CLK
IN
V
D
D
C
R
RX
CLK
/
K
K
PH
Y
A
D
1
RX
D
3
/
PH
Y
A
D
2
RX
D
2
/
nPME
/
RMII
S
E
L
RX
D
1
/
M
O
D
E
1
RX
D
0
/
M
O
D
E
0
V
D
D
I
O
RX
E
R
/
RX
D
4
/
P
H
Y
A
D
0
C
R
S
CO
L/
CRS
_
D
V
/
M
O
D
E
2
M
D
IO
M
D
C
n
IN
T/
TX
ER
/
TX
D
4
nR
ST
TX
C
LK
TX
EN
TX
D
0
TX
D
1
TX
D
2
TX
D
3
RX
D
V
V
D
D
1
A
TX
N
X
X
TX
P
RX
N
X
X
RX
P
RBIA
S
P
A
D
U1
*SMSC LAN8740
RXD1
RXD0
RX_ER
MDIO
MDC
TX_EN
TXD0
TXD1
CRS_DV
nRST
CLK_IN nINT
GND
GND
LED_ACT
TXP
TXN
RXP
RXN
LED_LINK
49.9R
R17
49.9R
R18
49.9R
R19
49.9R
R20
249R
±1%
R21
249R
±1%
R22
12pF
C10
GND
12
pF
C
10
0
0
G
N
G
G
D
12pF
C11
12pF
C12
12pF
C13
For EMI Purposes
(DNP)
VDDA
0.022uF
C14
0R
R23
EGND
EGND
GND EGND
EG
N
G
G
D
EG
N
G
G
D
Create EGND copper pour
around RJ-45 Conn
VDDA
J3011G21DNL
2
12
8
4
11
1
7
6
NC
9
10
3
5
SHIELD
14
SHIELD
13
J7
J6
J4
J3
J1
J5
J8
J2
4 X 75ê
Yel
Grn
1000pF 2KV
J2
TXN
TXP
RXP
RXN
TX_P
TX_N
RX_N
RX_P
LED_ACT
LED_LINK
12.1k
±1%
R15
GND
GND
GND GND
1.0uF
C3
1.0uF
C7
0.1uF
C4
0.1uF
C5
FB1
VDDA+3.3V
1.0uF
C1
GND
0.1uF
C2
+3.3V
10K
R5
10K
R16
+3.3V
1.5K
R7
±1%
4.7K
R1
±1%
4.7K
R2
±1%
4.7K
R3
±1%
4
.
7K
R
1
±1%
4
.
7K
R
2
±1
%
4.
7
K
R
3
MODE[2:0] = 111
Default
+3.3V
+
3.
3V
10K
R
5
RMII
EN
±1%
4.7K
R6
±1%
4.7K
R4
±1%
4.7K
R8
GND
±1%
4
.
7K
R
6
±1%
%
4
.
7K
R
4
±1
%
4
.
7
K
R
8
G
N
G
G
D
PHYAD[2:0] = 000
Default
G
N
G
G
D
LE
D
_
_
LI
N
_
K
2
4
9R
±1
%
R
2
2
REGOFF=0
(Regulator ON)
GND
1.0uF
C8
470pF
C9
GND
CLK_IN
33R
±1%
R12
33R
±1%
R13
33R
±1%
R14
33R
±1%
R11
33
R
±1%
R1
2
33
R
±1%
R
13
33
R
±1%
R1
1
Place close to U1
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
14
S9014E-12-ND
EGND
25
EGND
25
J1
2 HDR/DB
EGND