Service manual
11-8 SAM4S ER-900/SPS-300 SERIES
1
3
4
6
7
9
10
1
1
1
1
0
0
0
0
1
1
0
0
1
0
1
0
OP1
HIGH
1
0
0
1
1
1
0
0
OP0
DD
10
22
2
5
8
NO
AGND
LOW
AGND
DD
44
33
11
R9047K
R8647K
SDC_/WP
SPI_CLK
SPI_CS
ENET_RXD0
ENET_RXD1
ENET_RXD3
0 R51
AA
ENET_TX_ER
1
CN3:A
3
CN3:C
4
CN3:D
6
CN3:F
7
CN3:G
9
CN3:I
10
CN3:J
/RSTOUT
BB
ENET_LINKSTS
ENET_MDINTR
ENET_RX_DV
COL/RMII
ENET_CRS
ENET_COL
LANLED_LINK&ACT
LED1 RED
OP2
CC
Description
FUNCTION
File Name
SizeSize
ENET_LINKSTS
7
of
1.0
Rev
44
33
22
11
AA
SDC_/CD
SPI_DO(DATA)
SPI_DI(CMD)
ENET_RXD2
ENET_RX_ER
AGND
C47
22pF
X4
25MHZ
ENET_TX_CLK
R95
4.7K
VDD33V
8
CN3:H
2
CN3:B
5
CN3:E
0 R79
VDD33V
BB
SIGNAL
AGND
VDD33V
AGND
VDD33V
100nF
C57
CC
10K
R46
VDD33V
VDD33V
L2
AVDD18V
L1
LANLED_SPEED
2
3
1
MMBT2222A
Q7
R57
10K
A3
A3
Date
(+3.27V)
H.T JANG
AGND
C48
100nF
R754.7K
R804.7K
R8747K
R9147K
R9447K
100nF
C33
R42
10K
R49
10K
100nF
C28
100nF
C51
R47
1.5K
100nF
C53
10uF
CE7
16V
100nF
C60
2
3
1
MMBT2222A
Q8
R93
10K
C50
100nF
10uF
CE5
16V
VSS(GND)
SDC DATA1
SDC CLK
VDD(+3.3V)
SDC DATA3/CD
SDC DATA2
SDCARD CONN.
22 R64
ENET_RX_CLK
ENET_TXD1
ENET_TXD2
VDD33V
ENET_TX_EN
ENET_MDC
VSDCARD CONTROL
2.2K R44
RMII MODE
300 R81
LAN_RX-
LAN_RX+
10K R74
LAN_TX+
C58 15pF
Reserved
Reserved
R83 49.9
R88 49.9
NEWNET MAIN.SCH
Sheet
TITLE :
SPS300&ER900 MAIN B'D
SDC DATA0
SDC CMD
VDD33V VSDCARD
C42
22pF
22 R72
ENET_TXD0
ENET_TXD3
ENET_MDIO
ETHERNET PHY
AVDD18V
SDVOLT_ONOFF
1K
R92
R78
6.8K
VDD33V
MII MODE
10K R50
10K
R52
LAN_TX-
MII/RMII MODE SELECT
300 R65
10K R69
300 R76
10K R82
AVDD18V
C52 15pF
C59 15pF
R84 49.9
R89 49.9
C56 15pF
LAN & USB & SDCARD BLOCK
2011.05.16
Drawn by
Shin Heung Precision Co., Ltd.
R99
300
VSDCARD
VDD18V
2.2K
R61
100nF
C37
100nF
C54
R43
10K
R45
4.7K
R48
10K
470
R98
AGND
10uF
CE8
16V
R35
10K
2
3
1
KSA1182-Y
Q9
R85
1K
SDC nWP(WRITE PROTECTION)
SD CARD BOARD WIRE CONNECTION
Auto negotiation Enables
Manually Select 100TX FDX
Manually Select 10TX FDX
Manually Select 100TX HDX
Manually Select 10TX HDX
Dual Speed 100/10 HDX
SDC nCD(CARD DETECTION)
44
DGND
33
DGND
46
AGN D
6
AGN D
2
AVDDR18
1
AVDDR18
47
BGR ESG
30
DVD D
23
DVD D
42
XT2
43
XT1
10
PWRDWN
40
RESET
18
TXD2
19
TXD1
21
TXEN
24
MDC
45
N.C
3
RX+
4
RX-
7
TX+
20
TXD0
17
TXD3
25
MDIO
15
DGND
5
AGN D
9
AVDDT18
8
TX-
41
DVD D
31
LEDMODE
37
RXDV/TESTMODE
28
RXD1/PHYAD1
29
RXD0/PHYAD0
14
CABLESTS/LINKSTS
32
MDINTR
26
RXD3/PHYAD3
34
RXCLK/10BTSER
35
CRS/PHYAD4
36
COL/RMII
13
LED2/OP2
16
TXER/TXD4
11
LED0/OP0
39
DISMDIX
48
BGRES
27
RXD2/PHYAD2
38
RXER/RXD4/RPTR
22
TXCLK/ISOLATE
12
LED1/OP1
U8
DM9161B