Intel Desktop Board D955XBK Technical Product Specification 
26   
 
For information about   Refer to 
The location of the back panel IEEE-1394a connector  Figure 17, page 54 
The location of the front panel IEEE-1394a/b connectors  Figure 19, page 56 
The signal names of the front panel IEEE-1394a/b connectors  Section 2.7.2.6, page 66 
1.10 I/O Controller 
The I/O controller provides the following features: 
•  One serial port 
•  One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port  
(EPP) support 
•  Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus systems 
•  PS/2-style mouse and keyboard interfaces 
•  Interface for one 1.44 MB or 2.88 MB diskette drive 
•  Intelligent power management, including a programmable wake-up event interface 
•  PCI Conventional bus power management support 
The BIOS Setup program provides configuration options for the I/O controller. 
1.10.1 Serial Port 
The board has one serial port connector located on the back panel.  The serial port supports data 
transfers at rates of up to 115.2 kbits/sec with BIOS support. 
 
For information about   Refer to 
The location of the serial port A connector  Figure 18, page 55 
 
1.10.2 Parallel Port 
The 25-pin D-Sub parallel port connector is located on the back panel.  Use the BIOS Setup 
program to set the parallel port mode.   
 
For information about   Refer to 
The location of the parallel port connector  Figure 18, page 55 
 
1.10.3  Diskette Drive Controller 
The I/O controller supports one diskette drive.  Use the BIOS Setup program to configure the 
diskette drive interface. 
 
For information about   Refer to 
The location of the diskette drive connector on the D955XBK board  Figure 19, page 56 
 
1.10.4  Keyboard and Mouse Interface 
PS/2 keyboard and mouse connectors are located on the back panel.