IBASE MB945 User Manual
Page 22
INSTALLATIONS
CN3: Serial Ports(COM1)
CN3 (COM1) is a DB-9 connector, while J6, COM3 and COM4 are
COM pin-header connectors.
COM1 (DB-9)
Signal Name
Pin #
Pin #
Signal Name
DCD, Data carrier detect
1
6
DSR, Data set ready
RXD, Receive data
2
7
RTS, Request to send
TXD, Transmit data
3
8
CTS, Clear to send
DTR, Data terminal ready
4
9
RI, Ring indicator
GND, ground
5
10
Not Used
CN4: PS/2 Keyboard and PS/2 Mouse Connectors
Mouse (top)
Keyboard (bottom)
Keyboard
Signal
Pin #
Mouse
Signal
Keyboard data
1
Mouse data
N.C. 2
N.C.
GND 3
GND
5V 4
5V
Keyboard clock
5
Mouse clock
N.C. 6
N.C.
CN5: HD Audio Connector
CN8: Gigabit LAN (Intel 567LM) RJ-45&USB 4/5 Connector
CN9: Gigabit LAN (Intel 574L) RJ-45 &USB 10/11 Connector
CN10: Compact Flash Type II Socket
Note: The CompactFlash interface cannot be used simultaneously
with the IDE interface.
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MB945 User’s Manual