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Schematic Diagrams
SB VT8237A-1PCI/ USB
+3VS
RN27
1
2
3
4
RN28
1
2
3
4
RN26
1
2
3
4
RN69
1
2
3
4
Sheet 11 of 40
RN68
1
2
3
SB VT8237A-1PCI/
4
+3VS
USB
RN25
1
2
3
4
(29)
(29)
(17,19)
(17,20,29)
(19)
(20)
(29)
(9)
(17)
(19)
(20)
(29)
(29)
(21)
GATE_PCIRST#
+3VS
RN30
1
2
3
4
RN29
1
2
3
4
B - 12 SB VT8237A-1PCI/ USB
All manuals and user guides at all-guides.com
AD[0..31]
C/BE#[0..3]
8P4R-4.7K
INT#C
8
INT#A
AD0
7
G2
AD0
INT#B
AD1
6
J4
INT#G
AD2
AD1
5
J3
AD3
AD2
H3
AD4
AD3
8P4R-4.7K
F1
INT#H
AD5
AD4
8
G1
INT#E
AD6
AD5
7
H4
AD6
INT#F
AD7
6
F2
AD7
INT#D
AD8
5
E1
AD8
AD9
G3
AD9
AD10
8P4R-8.2K
E3
PGNT#0
AD11
AD10
8
D1
PREQ#1
AD12
AD11
7
G4
PREQ#0
AD13
AD12
6
D2
PREQ#2
AD14
AD13
5
D3
AD15
AD14
F3
AD15
AD16
8P4R-8.2K
K3
AD16
PGNT#5
AD17
8
L3
AD17
PREQ#4
AD18
7
K2
AD18
PREQ#5
AD19
6
K1
PGNT#4
AD20
AD19
5
M4
AD21
AD20
L2
AD22
AD21
8P4R-8.2K
N4
PGNT#3
AD23
AD22
8
L1
PGNT#1
AD24
AD23
7
M2
AD24
PREQ#3
AD25
6
M1
AD25
PGNT#2
AD26
5
P4
AD26
AD27
N3
AD27
AD28
N2
AD29
AD28
N1
AD30
AD29
P1
AD31
AD30
8P4R-4.7K
P2
OC#1
AD31
8
OC#3
C/BE#0
7
E2
CBE0
OC#5
C/BE#1
6
C1
CBE1
OC#7
C/BE#2
5
L4
CBE2
C/BE#3
M3
CBE3
FRAME#
J1
(17,19,20,29)
FRAME#
DEVSEL#
FRAME
H2
(17,19,20,29)
DEVSEL#
IRDY#
DEVSEL
J2
(17,19,20,29)
IRDY#
TRDY#
IRDY
H1
(17,19,20,29)
TRDY#
TRDY
STOP#
K4
(17,19,20,29)
STOP#
STOP
SERR#
C2
(17,19,20,29)
SERR#
SERR
PAR
F4
(17,19,20,29)
PAR
PAR
PERR#
C3
(17,19,20,29)
PERR#
PCIRST_SB#
PERR
R1
PCIRST
INT#A
A4
INT#A
INT#B
INTA
B4
INT#B
INT#C
INTB
B5
INT#C
INTC
INT#D
C4
INT#D
INTD
INT#E
D4
INT#E
INTE/GPIO12
INT#F
E4
INT#F
INTF/GPIO13
INT#G
A3
INT#G
INT#H
INTG/GPIO14
B3
INT#H
INTH/GPIO15
PREQ#0
A5
(17)
PREQ#0
PREQ#1
REQ0
B6
(19)
PREQ#1
PREQ#2
REQ1
C5
(20)
PREQ#2
REQ2
PREQ#3
D5
(29)
PREQ#3
REQ3
PREQ#4
P3
(29)
PREQ#4
REQ4
PREQ#5
R3
REQ5/GPI7
PGNT#0
A6
PGNT#0
PGNT#1
GNT0
D6
PGNT#1
PGNT#2
GNT1
C6
PGNT#2
PGNT#3
GNT2
E5
PGNT#3
PGNT#4
GNT3
R4
PGNT#4
GNT4
PGNT#5
R591
0(R)
R2
GNT5/GPO7
D04
+2.5V
C271
0.1UF
C273
10UF
8P4R-2.7K
TRDY#
8
FRAME#
7
VDD2.5
IRDY#
USBP0
R594
6
STOP#
5
USBN0
C859
0.1UF
R592
8P4R-2.7K
USBP1
8
R195
7
C858
10UF
SERR#
USBN1
6
R194
DEVSEL#
5
VDD2.5
USBP2
R587
USBN2
R588
(12,33)
VDD2.5
USBP3
+2.5V
R196
USBN3
R197
(3,8,10,34)
+2.5V
AD[0..31] (17,19,20,29)
C/BE#[0..3] (17,19,20,29)
+3VS
USBVDD
U13A
L46
FCM2012V-121
A22
L47
USBVDD
B22
FCM2012V-121(R)
USBVDD
C22
USBVDD
D22
USBVDD
E22
USBVDD
F22
USBVDD
J13
USBVDD
J14
USBVDD
J15
USBVDD
J16
USBVDD
J17
USBVDD
J18
L44
VDD2.5
USBVDD
FCM2012V-121
C24
L100
+2.5V
USBSUS25
FCM2012V-121(R)
C269
C845
10UF
0.1UF
+2.5VUSBPLL
NEAR SB
A23
L45
PLLVDDA1
B23
C844
C270
FCM2012V-121
PLLVDDA2
D23
0.1UF
10UF
L99
PLLGNDA1
C23
FCM2012V-121
PLLGNDA2
USBP0
E20
USBP0 (28)
USBP0+
USBN0
D20
USBN0 (28)
USBP0-
USBP1
A20
USBP1 (28)
USBP1+
USBN1
B20
USBN1 (28)
USBP1-
USBP2
E18
USBP2 (28)
USBP2+
USBN2
D18
USBN2 (28)
USBP2-
USBP3
A18
USBP3 (28)
USBP3+
USBN3
B18
USBP3-
USBN3 (28)
USBP4
D16
USBP4+
USBP4 (28)
USBN4
E16
USBN4 (28)
USBP4-
USBP5
A16
USBP5 (16,21)
USBP5+
USBN5
B16
USBN5 (16,21)
USBP5-
USBP6
D14
USBP6 (28)
USBP6+_NC
USBN6
E14
USBN6 (28)
USBP6-_NC
USBP7
A14
USBP7 (29)
USBP7+_NC
USBN7
B14
USBP7-_NC
USBN7 (29)
OC#0
C26
OC#0
(28)
USBOC0
OC#1
D24
USBOC1
OC#2
B26
OC#2
(28)
USBOC2
OC#3
C25
USBOC3
OC#4
B24
OC#4
(28)
USBOC4
OC#5
A24
USBOC5
OC#6
A26
USBOC6_NC
OC#6
(28)
OC#7
A25
USBOC7_NC
USBCLK48
E23
USBCLK48 (2)
USBCLK
B25
R202
5.6K_1%
USB REXT
D26
UDPWR/GPI9_NC
T
D25
UDPWREN/GPO9_NC
T
A20GATE
W3
KBCK/KA20G
A20GATE (24)
KB_RC_IN#
V1
KB_RC_IN#(24)
KBDT/KBRC
W1
R214
4.7K
MSCK/IRQ1
+3V
W2
R219
4.7K
MSDT/IRQ12
+3VS
C891
0.1UF
VT8237A
C880
0.1UF
C874
0.1UF
C278
0.1UF
USBP4
15K
R585
15K
C726
0.1UF
USBN4
15K
R586
15K
C873
0.1UF
USBP5
15K
R198
15K
C691
0.1UF
USBN5
15K
R199
15K
C759
0.1UF
15K
USBP6
R590
15K
C274
10UF
USBN6
15K
R589
15K
C758
10UF
USBP7
15K
R200
15K
C296
10UF
USBN7
15K
R201
15K
C890
10UF
+3V
VDD3
U14
+3V
PCIRST_SB#
2
ALLPCIRST#
4
ALL_PWRGD
1
(2,3,10,13,31)
ALL_PWRGD
3
TC7SZ08
+3V
+3V
+2.5VS
14
U20C
14
U20D
C236
5
6
9
8
R630
33
0.1UF
7
7
74LVC14
74LVC14
+5VS
C283
+5VS
0.1U
U17A
U17B
ALLPCIRST#
1
2
3
4
R622
22
74HCT14
74HCT14
+5VS
+5VS
U17C
U17D
5
6
9
8
R613
22
+3V
+3V
74HCT14
74HCT14
14
14
U20E
U20F
11
10
13
12
R611
100
7
7
74LVC14
74LVC14
CPURST#(3)
U17F
13
12
R612
1K
B
Q58
T
T
DTC114EUA
74HCT14
NEAR CPU
+5VS
(3,12,14,16,18,21,24,26,30,31,32,33,34,35)
USBVDD
+5VS
(12,14,15,16,21,22,24,29,31,32,33)
USBVDD
C855
0.1UF
(2,8,9,10,12,13,14,15,16,19,20,21,22,24,25,27,29,31,32,33)
+3V
C856
0.1UF
+3V
(14,17,18,19,20,21,24,29,32,33)
C864
0.1UF
(3,8,12,13,34)
C842
10UF
C843
10UF
ALLPCIRST#(21)
PCIRST#(17,19,22,24,27,29)
HDDRST#(21)
RESET_NB#(10)
PCI_E_RST#
PCI_E_RST# (14)
VDD3
VDD3
+3VS
+3VS
+2.5VS
+2.5VS
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