Datasheet

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Pin27
RGMII MODE
Pin35
Pin15
Layout Note:
1 1 1 1
Max trace-length mismatch
between GBE signals pairs
should be no greater than ? mm.
Pin17
3.3V
Pin32
LED_MODE:
The KSZ9031RNX reduces board cost and
simplifies board layout by using on-chip
termination resistors for the four differential pairs,
so no other resistors be needed.
Pin31
Pin28
MODE:
1.2V
1.2V
Pin41
1.2V
3.3V
IO=3.3V
Pin33
PHY Address:
0 (Default)
Dis 125MHz Output
Strapping Options:
Review Note:
10/100/1000 Speed
Half/Full Duplex
100 ohms differential trace
impedance.
CLK125_EN:
( 0 0 ) 1 1 1
Single-LED Mode
1
1.2V
Layout Note:
The RGMII1 signals must be length-matched by TX and RX groups:
That is, the TX group should be matched within 300 Mil (7.62 mm),
and the RX group should be matched within 300 Mil (7.62 mm).
Total length should not exceed 1750 Mil (44.5 mm).
There is no requirement to match the TX and RX groups because their clocks are not related.
Place R* Close To PHY.
Layout Note:
Place R* Close To MPU.
Layout Note:
ETH1_INTn
Enable CLK125
Disable CLK125
VETH1_AVDDL_PLL
VETH1_AVDDH VETH1_AVDDL_PMOS
VETH1_DVDDH
VETH1_DVDDL
VETH1_DVDDH
VETH1_AVDDL
VETH1_AVDDL_PLL
VETH1_DVDDH
VETH1_DVDDH
VETH1_AVDDH
VETH1_AVDDL
VETH1_DVDDH
VETH1_DVDDH
VETH1_AVDDH
VETH1_DVDDL
VETH1_DVDDH
GND_EARTH
VETH1_DVDDH
VETH1_DVDDH3V3_DC
3V3_DC
ETH_TXD0[7]
ETH_TXD1[7]
ETH_TXD2[7]
ETH_TXD3[7]
ETH_RXD0[7]
ETH_RXD1[7]
ETH_RXD2[7]
ETH_RXD3[7]
ETH_MDIO[7]
NRST[7,8,9]
ETH_NRST[7]
ETH_MDC[7]
ETH_GTX_CLK[7]
ETH_TX_EN[7]
ETH_RX_CLK[7]
ETH_RX_DV[7]
ETH_MDINT[7]
ETH_CLK125[7]
Title:
Size: Document Number: Rev:
Date: Sheet: ofDraw By:
https://www.seeedstudio.com
v1.01A3
3 9Tuesday, December 17, 2019weifeng
Seeed NPi - STM32MP157C
03 1000M Ethernet
Title:
Size: Document Number: Rev:
Date: Sheet: ofDraw By:
https://www.seeedstudio.com
v1.01A3
3 9Tuesday, December 17, 2019weifeng
Seeed NPi - STM32MP157C
03 1000M Ethernet
Title:
Size: Document Number: Rev:
Date: Sheet: ofDraw By:
https://www.seeedstudio.com
v1.01A3
3 9Tuesday, December 17, 2019weifeng
Seeed NPi - STM32MP157C
03 1000M Ethernet
C59
100uF
C1206
6.3V,X5R
C33
100nF
C0402
16V,X7R
R129 0R
5%R0402
R45 49.9R
FB9 120R
L0402 1.3A
C80
10pF
C0402
50V,NPO
DNP
J13
48F-01GY2DPL2NL
rj45_18p_48F-01GY2DPLXNL
TD2+
3
TD1+
1
TD1-
2
TD3+
7
TD3-
8
CT2
6
TD2-
4
GRL+
11
GRL-
12
TD4+
9
TD4-
10
CT1
5
YEL-
13
YEL+
14
GND1
15
GND2
16
NC1
17
NC2
18
C51 22pF
C0402 50V,NPO
R108
10K
1%
R0402
X3
25MHz 18pF
X4-SMD-3_2X2_5X1_0MM
1 43
2
R95 49.9R
1%R0402
DNP
C65
10uF
C0603
10V,X5R
R106 10K
1%R0402
R102
1K
5%
R0402
R43 49.9R
R94 10K
1%R0402
R74
10K
1%
R0402
C57
10uF
C0603
10V,X5R
G
S
D1
D2
Q6
FDT434P
sot223_4
1
3
4
2
R68 10K
1%R0402
R85
1.5K
5%
R0402
C47 22pF
C0402 50V,NPO
C62
100nF
C0402
16V,X7R
R104
1K
5%
R0402
C55
100nF
C0402
16V,X7R
R69 10K
1%R0402
R62 0R
5%R0402
C42
10nF
C0402
50V,X7R
R84 0R
5%R0402
R53 49.9R
1%R0402
U8
74LVC1G07GW
SOT353
A
2
Y
4
GND
3
VCC
5
NC
1
FB10 120R
L0603 2A
R73 0R
C28
10pF
C0402
50V,NPO
C48
100nF
C0402
16V,X7R
R107 10K
1%R0402
R44 49.9R
C31
100uF
C1206
6.3V,X5R
R65 10K
1%R0402
D10
1N4148W
SOD_123
150mA
1 2
R89
4.7K
5%
R0402
R57 49.9R
R66 1K
5%R0402
DNP
R64 10K
1%R0402
R105
12.1K
1%
R0402
FB6 120R
L0402 1.3A
C73
4.7pF
C0402
50V,NPO
DNP
C52
100nF
C0402
16V,X7R
C30
10uF
C0603
10V,X5R
R60 1K
5%R0402
R46 49.9R
U5
KSZ9031RNXCA
qfn48_0d5_7x7mm
VSS_PS
13
LED2
15
DVDDH_1
16
LED1 / PME_N1
17
DVDDL_1
14
TXD0
19
TXD1
20
TXD2
21
TXD3
22
DVDDL_2
18
DVDDL_3
23
GTX_CLK
24
TX_EN
25
DVDDL_4
26
RXD3
27
VSS
29
DVDDL_5
30
RXD1
31
RXD0
32
RX_DV
33
DVDDH_2
34
RX_CLK
35
MDC
36
MDIO
37
INT_N / PME_N2
38
DVDDL_6
39
DVDDH_3
40
CLK125_NDO
41
RESET_N
42
LDO_O
43
XO
45
XI
46
AVDDH_3
47
ISET
48
AVDDH_1
1
TXRXP_A
2
TXRXM_A
3
TXRXP_B
5
TXRXM_B
6
TXRXP_C
7
TXRXM_C
8
TXRXP_D
10
TXRXM_D
11
AVDDH_2
12
RXD2
28
AVDDL_PLL
44
P_GND
49
AVDDL_1
4
AVDDL_2
9
R109 0R
5%R0402
R48 100R
C41
100nF
C0402
16V,X7R
R128 0R
5%R0402
DNP
C58
10uF
C0603
10V,X5R
C20
10pF
C0402
50V,NPO
C32
10uF
C0603
10V,X5R
R100
1M
1%
R0402
DNP
R70 10K
1%R0402
R58 49.9R
R61 100R
C34
100nF
C0402
16V,X7R
C43
10uF
C0603
10V,X5R
R59 49.9R
R103 0R
5%R0402
DNP
R41 49.9R
1%R0402
R56 49.9R
RGMII1_RCLK
GBE1_LED_LINK
GBE1_LED_ACT
ETH1_LDO_O
RGMII1_RD3
RGMII1_RD2
RGMII1_RD1
RGMII1_RD0
RGMII1_RCTL
ETH_MDC
ETH_MDIO
ETH1_LDO_O
GBE1_TRP0
GBE1_TRN0
GBE1_TRP1
GBE1_TRN1
GBE1_TRP2
GBE1_TRN2
GBE1_TRP3
GBE1_TRN3
GBE1_LED_ACT
GBE1_LED_LINK
GBE1_TRP0
GBE1_TRN0 GBE1_LED_LINK
GBE1_TRP1
GBE1_TRN1
ETH1_RESETn
GBE1_TRP2 GBE1_LED_ACT
GBE1_TRN2
GBE1_TRP3
GBE1_TRN3
ISET
RGMII1_TCLK
RGMII1_TCTL
RGMII1_TD0
RGMII1_TD1
RGMII1_TD2
RGMII1_TD3
RGMII1_RCLK
RGMII1_RCTL
RGMII1_RD0
RGMII1_RD1
RGMII1_RD2
RGMII1_RD3
MDC
MDIO
ETH_RX_CLK
RGMII1_TCLK
LED_MODE
LED_MODE