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Chapter 17 PHP I/O Baseboard: Description/Setting Configuration Jumpers
213
Keyboard and Mouse Ports
These identical PS/2 compatible ports share a common housing. The top one is the mouse, and the
bottom one is the keyboard.
OM00951A
12
6
43
5
Mouse Keyboard
Pin Signal Pin Signal
1 MSEDAT (mouse data) 1 KEYDAT (keyboard data)
2 No connection 2 No connection
3 GND (Ground) 3 GND (Ground)
4 FUSED_VCC (+5 V) 4 FUSED_VCC (+5 V)
5 MSECLK (mouse clock) 5 KEYCLK (keyboard clock)
6 No connection 6 No connection
Serial Ports
These ports support external devices such as modems and scanners that require serial data
transmission.
1
OM00932A
5
69
Pin Signal
1 DCD (data carrier detect)
2 RXD (receive data)
3 TXD (transmit data)
4 DTR (data terminal ready)
5 GND (Ground)
6 DSR (data set ready)
7 RTS (request to send)
8 CTS (clear to send)
9 RIA (ring indicator)