iv
I/O Addresses............................................................................................................................. 2–11
Interrupt Assignments ..............................................................................................................2–12
ROM-BIOS Installation of the Serial Ports............................................................................... 2–1 3
Serial Port Connectors (J11, J13).............................................................................................. 2–1 3
Configuring Serial 2 for RS-485 (J6, W5, W6) .......................................................................... 2–15
RS-485 Twisted-Pair Cabling Using RJ11 Connectors ............................................................. 2–16
Using the RS-485 Interface .......................................................................................................2–17
Serial Console ............................................................................................................................2–18
Serial Booting and Serial Programming ...................................................................................2–20
Using a Serial Modem................................................................................................................2–20
Bi-Directional Parallel Port.............................................................................................................2–2 1
I/O Addresses............................................................................................................................. 2–21
ROM-BIOS Installation of Parallel Ports.................................................................................. 2–22
Standard and General Purpose I/O Operation .......................................................................... 2–22
Parallel Port Interrupt ..............................................................................................................2–23
Parallel Port Connector (J15) .................................................................................................... 2–25
Floppy Disk Interface ......................................................................................................................2–27
Floppy Drive Considerations .....................................................................................................2–27
Floppy Interface Configuration .................................................................................................2–28
Floppy Interface Connector (J14) ..............................................................................................2–28
IDE Hard Disk Interface .................................................................................................................2–29
IDE Connector (J12) ..................................................................................................................2–29
IDE Interface Configuration......................................................................................................2–31
Compact Flash Solid-State Disk................................................................................................ 2–32
Flat Panel/CRT Video Controller .................................................................................................... 2–33
Connecting a CRT (J5)...............................................................................................................2–33
Connecting a Flat Panel (J3) ..................................................................................................... 2–35
Selecting Vee Polarity................................................................................................................2–39
Attaching an External Contrast Control................................................................................... 2–40
Ethernet Network Interface ............................................................................................................2–42
Network Terms ..........................................................................................................................2–42
Installing an Ethernet Boot PROM........................................................................................... 2–43
Twisted Pair Interface (J7)........................................................................................................ 2–44
Twisted-Pair Installations......................................................................................................... 2–44
Using Network Operating Systems (NOS) ................................................................................2–45
Network OS Drivers...................................................................................................................2–46
Controlling the Ethernet LAN Interface Directly .....................................................................2–46
Manufacturer’s Ethernet ID ...................................................................................................... 2–47
Byte-Wide Socket (S0) .....................................................................................................................2–48
Addressing the Byte-wide Socket ..............................................................................................2–49
Solid State Disk (SSD) Drives ...................................................................................................2–50
Accessing the Byte-Wide Socket ................................................................................................ 2–50
Jumpering the Byte-Wide Socket ..............................................................................................2–52
Byte-Wide Socket Signals.......................................................................................................... 2–52
Using EPROMs ..........................................................................................................................2–53
FLASH EPROM Programming .................................................................................................. 2–53
Using SRAMs............................................................................................................................. 2–54
Non-volatile RAM ......................................................................................................................2–54