Specifications

Little Board/486i Technical Manual
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2.11 Byte-wide Sockets................................................................................................................ 2–23
2.11.1 Addressing the Byte-wide Sockets........................................................................ 2–25
2.11.2 Direct Program Access......................................................................................... 2–25
2.11.3 Solid State Disk (SSD) Drives.............................................................................. 2–26
2.11.4 Jumpering the Byte-Wide Sockets ........................................................................ 2–26
2.11.5 Using EPROMs.................................................................................................... 2–27
2.11.6 Using Flash EPROMs........................................................................................... 2–29
2.11.7 Using SRAMs ...................................................................................................... 2–29
2.12 Flat Panel/CRT Video Controller ......................................................................................... 2–30
2.12.1 Connecting a CRT (J5)......................................................................................... 2–31
2.12.2 Connecting a Flat Panel (J3)................................................................................. 2–32
2.12.3 The LCD Bias Supply Option............................................................................... 2–35
2.12.4 External Video Overlay Connector (J6)................................................................ 2–37
2.13 Ethernet Network Interface ..................................................................................................2–39
2.13.1 Setting up a Boot PROM...................................................................................... 2–39
2.13.2 Connecting to the Ethernet Cable .........................................................................2–40
2.14 Battery-Backed Clock .......................................................................................................... 2–42
2.15 Watchdog Timer ..................................................................................................................2–42
2.16 Utility Connector (J16) ........................................................................................................ 2–42
2.16.1 LED Connection .................................................................................................. 2–44
2.16.2 Speaker Connections............................................................................................ 2–44
2.16.3 Push-button Reset Connection.............................................................................. 2–44
2.16.4 Security Switch Connection.................................................................................. 2–44
2.16.5 Keyboard Connections ......................................................................................... 2–44
2.16.6 External Battery Connections ............................................................................... 2–44
2.17 AT Expansion Bus ............................................................................................................... 2–45
2.17.1 On-board MiniModule Expansion.........................................................................2–45
2.17.2 Using Standard PC and AT Bus Cards.................................................................. 2–45
2.17.3 Bus Expansion Guidelines.................................................................................... 2–46
2.17.4 Expansion Bus Connector Pinouts ........................................................................ 2–47
2.17.5 Interrupt and DMA Channel Usage....................................................................... 2–52
CHAPTER 3—SOFTWARE CONFIGURATION
3.1 Introduction ........................................................................................................................... 3–1
3.2 SETUP................................................................................................................................... 3–1
3.3 SETUP Page 1—Standard (CMOS) SETUP ........................................................................... 3–3
3.3.1 Date and Time........................................................................................................3–3
3.3.2 Floppy Drives ........................................................................................................ 3–3
3.3.3 IDE Hard Disk Drives............................................................................................ 3–4
3.3.4 Video..................................................................................................................... 3–4
3.3.5 DRAM Memory..................................................................................................... 3–4
3.3.6 Error Halt .............................................................................................................. 3–5
3.3.7 Video Shadow RAM .............................................................................................. 3–5
3.3.8 System POST......................................................................................................... 3–5
3.4 SETUP Page 2—Options/Peripheral Configuration ................................................................ 3–6
3.4.1 Extended BIOS ...................................................................................................... 3–6
3.4.2 Serial Ports ............................................................................................................ 3–6
3.4.3 Parallel Port........................................................................................................... 3–7
3.4.4 Floppy Interface Enable ......................................................................................... 3–7
3.4.5 IDE Interface Enable.............................................................................................. 3–7