Ports Pin Signal Function In/Out DB25 | Ampro Corporation 486E

Little Board™/486e Technical Manual

Table 2–8. Serial Port Connectors (J11, J13)

	Ports	Pin	Signal	Function	In/Out	DB25	DB9
			Name			Pin	Pin

	Serial 1	1	DCD	Data Carrier Detect	IN	8	1
	(J11)	2	DSR	Data Set Ready	IN	6	6
	or	2	DSR	Data Set Ready	IN	6	6
	or
	Serial 3	3	RXD	Receive Data	IN	3	2
	(J13)	4	RTS	Request To Send	OUT	4	7
		4	RTS	Request To Send	OUT	4	7
		5	TXD	Transmit Data	OUT	2	3
		6	CTS	Clear to Send	IN	5	8
		7	DTR	Data Terminal Ready	OUT	20	4
		8	RI	Ring Indicator	IN	22	9
		9	GND	Signal Ground	-	7	5
		10	N/A	No Connection	-	-	-

	Serial 2	11	DCD*	Data Carrier Detect*	IN	8	1
	(J11)	12	DSR	Data Set Ready	IN	6	6
	or	12	DSR	Data Set Ready	IN	6	6
	or
	Serial 4	13	RXD	Receive Data	IN	3	2
	(J13)	14	RTS	Request To Send	OUT	4	7
		14	RTS	Request To Send	OUT	4	7
		15	TXD	Transmit Data	OUT	2	3
		16	CTS	Clear to Send	IN	5	8
		17	DTR	Data Terminal Ready	OUT	20	4
		18	RI	Ring Indicator	IN	22	9
		19	GND	Signal Ground	-	7	5
		20	N/A	Key Pin	-	-	-

Table 2–9 shows the manufacturer’s part number for ribbon cable mating connectors to J11 and J13.

Table 2–9. J11 and J13 Mating Connector

Connector Type	Mating Connector

Ribbon	3M 3421-7600

Discrete Wire	MOLEX Housing 22-55-2202
	Pin 16-02-0103

2–14

Image 30

Ampro Corporation 486E manual Ports Pin Signal Function In/Out DB25, Name Pin

Contents

Little Board/486e Computer Revision Reason for Change Date Table of Contents Page Technical Specifications Index Introduction Technical Support This page left intentionally blank Viii General Description FeaturesChapter CPU/Motherboard Enhanced Embedded-PC Bios VL-Bus Flat Panel/CRT Display Controller Floppy Interface Serial PortsEnhanced Parallel Port IDE Interface Ethernet LAN Interface Byte-Wide Socket and Solid State Disk SSD Enhanced Reliability Modular PC/104 Expansion Bus Halt Testing Software Little Board Development Platform Interface Connector Summary Overview Connector Function Size Key Pin Connectors Connector and Jumper Locations Jumper Configuration Options Jumper Group Function DefaultSystem I/O Map Address Function DC Power Connector Type Mating ConnectorPin Connection Power Requirements Backup BatteryCooling Requirements Powerfail Monitor Dram System Memory Map Expanded Memory and Extended Memory Memory Address Function RS-485 Serial Port Serial Ports J11, J13RS-232C Serial Ports Addresses Interrupt Assignments IRQ11 IRQ7 ROM-BIOS Installation of the Serial Ports Serial Port Connectors J11, J13 Ports Pin Signal Function In/Out DB25 Name Pin Configuring Serial 2 for RS-485 J6, W5, W6 Pin Signal Name RS-485 Twisted-Pair Cabling Using RJ11 Connectors Pin RJ11 Signal Standard Wire Color Using the RS-485 Interface Interconnection Scheme Examples Hex Command Serial Console COM Port Table Serial Handshake Serial Booting and Serial Programming Using a Serial Modem Bi-Directional Parallel Port Register Name Address Primary SecondarySelection Address Interrupts ROM-BIOS Installation of Parallel Ports Signal Type Number of Lines Function Output DriveStandard and General Purpose I/O Operation Parallel Port Interrupt Parallel Port Interrupt Enable Register Bit Signal Name In/Out Active J15Or Function High/Low Pin Parallel Port Connector J15 J15 Pin Signal Function In/Out DB25 Name Signal Name Full Name Description Register Bit Definitions Floppy Disk Interface Floppy Drive ConsiderationsCapacity Drive Size Tracks Data Rate Floppy Interface Configuration Floppy Interface Connector J14Pin Signal Name Function In/Out IDE Connector J12 IDE Hard Disk Interface 25. IDE Drive Interface Connector J12 IDE Interface Configuration Enabling the Drive Master/Slave SettingCompact Flash Solid-State Disk Solid-State Disk Preparation Connecting a CRT J5 Name Connector Pins/Type DescriptionFlat Panel/CRT Video Controller J5 Pin Signal Name DB-15 DB-9 Part Description Mating Connector Connecting a Flat Panel J3 W10 +5V Pin Signal Description Name FLM Power Sequencing Advanced Power Management Bios Support of Non-Standard Panels Pgmebios VIDEO=filename Selecting Vee Polarity LCD Bias Supply OptionJ4 Pin J3 Pin Description Attaching an External Contrast Control Ra = 270 Rb = Vee max Vee min / 1.5 Example Ethernet Network Interface Network Terms Installing an Ethernet Boot Prom QNX Installing a Boot Prom in Byte-Wide Socket S0 Twisted-Pair InstallationsInstalling a Boot Prom Twisted Pair Interface J7 Using Network Operating Systems NOS Network OS Drivers Controlling the Ethernet LAN Interface DirectlyProgram Name Vendor Function Driver Name Manufacturer’s Ethernet ID 00 40 SSD Device Size Package Generic Type Pins Part Number Byte-Wide Socket S0 ROM-BIOS Extensions Addressing the Byte-wide SocketWindow Address Accessing the Byte-Wide Socket Performance IssuesSolid State Disk SSD Drives Device 64KB Segment Address Size Segments Upper Nibble of BH W14 Pin Signal Name Description Byte-Wide Socket SignalsTypical Devices Pins Jumper Diagram Jumpering the Byte-Wide Socket Using EPROMs Flash Eprom Typical Devices Pins Jumper DiagramFlash Eprom Programming Using SRAMs Non-volatile RAM Utility Connector J16 Pin Signal Name Function Exsmi PC Speaker Push Button Reset ConnectionExternal Battery Connections LED Connection Battery-Backed Clock Watchdog Timer Jumper W4WDT Response AL,61H AL,NOT 08H OUT 61H,AL Page AT Expansion Bus Using Standard PC and AT Bus Cards Onboard MiniModule Expansion Bus Expansion Guidelines Bus Termination Expansion Bus Connector Pinouts Pin Signal Function In/Out Current PU/PD/S 47. AT Expansion Bus Connector, B1-B32 P1 48. AT Expansion Bus Connector, C0-C19 P2 PU/PD/S Interrupt and DMA Channel Usage Interrupt Function Channel Function Serial Parallel FloppyEthernet Video Setup Overview Menu Name Functions Setup Page 1-Standard CMOS/EEPROM Setup Standard CMOS/EEPROM Setup Floppy Drives Drive Parameter SetupDate and Time IDE Hard Disk DrivesPage Dram Memory Error HaltVideo System Post Setup Page 2-Options/Peripheral Configuration Extended Bios Port Address Serial PortParallel Port Selection Address Interrupt Hot Key Setup Enable Floppy Interface EnableIDE Interface Enable Selection Address Video State Blank Post Test Watchdog Timer Configuration Byte-Wide Socket ConfigurationSerial Boot Loader Enable Local Bus Video Display Installing a Modified Bios to Support a New Panel Flat Panel Display Type Setup Page 3-Serial Console Configuration Extended Serial Console ConfigurationPage Creating Configuration Files with SETUP.COM Switch Function Operation with DOS DIR LPT1 Utility Software Overview Little Board/486e CPU Specifications Embedded-PC System Enhancements Onboard Peripherals CRT Support for Standard Video Modes Vesa Font Pixels Clock Horiz Vert Mem Mode MHz KHz Support Software Mechanical and Environmental Specifications Mechanical Dimensions Technical Specifications Page Index Page POST, Setup Little Board/486e Technical Manual Index-4