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J18: USB1/ USB2; J19: USB3/ USB4 Connectors
J18- USB1/ USB2 and J19- J19USB3/ USB4 are the standard USB external
connectors consisting of two ports. USB support allows connections of
up to 64 plug and play external peripherals per channel. The following
table shows the pin outs of these ports.
Signal Name& Pin #
PORT2
PORT1
USB1
J20: AC'97 Audio Output Connector
Onboard AC '97 CODEC supports the Audio function. Please refer to the
default jumper setting before you proceeding with system installation.
Signal Name
J21: PS/2 Keyboard/Mouse Connector
J21, a 10-pin header connector, has functions for both keyboard and
mouse. The following table shows the pin assignments of this connector.
Signal Name
KB clock
28
Pin #
Signal
Name
1
Vcc
2
USB-
3
USB+
4
Ground
Pin #
LOUTR
1
Ground
3
Linr
5
Ground
7
Mic
9
Ground
11
Pin #
N.C.
10
9
KB data
8
Vcc
7
Ground
6
Signal Name& Pin #
PORT2
Pin #
1
2
3
PORT1
USB2
4
Pin #
Signal Name
2
LOUTL
4
Ground
6
LINL
8
Ground
10
BIAS
12
NC
Pin #
Signal Name
5
N.C.
4
Mouse clock
3
Mouse data
2
Vcc
1
Ground
Mungo540 User's Manual
Signal
Name
Vcc
USB-
USB+
Ground
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