IBM SAGP-845EV user manual Serial Ports, COM1 10-pin Connector, COM2 10-pin Connector

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3.4Serial Ports

SAGP-845EV offers two high speed NS16C550 compatible UARTs with Read/Receive 16-byte FIFO serial ports.

•COM1 10-pin Connector

PIN	Description
1	DATA CARRIER DETECT (DCD)	1	6
2	RECEIVE DATA (RXD)	1	6
3	TRANSMIT DATA (TXD)
4	DATA TERMINAL READY (DTR)
5	GROUND
6	DATA SET READY (DSR)	5	10
7	REQUEST TO SEND (RTS)	5	10
8	CLEAR TO SEND (CTS)
9	RING INDICATOR (RI)
10	NC

•COM2 10-pin Connector

PIN	Description
1	DATA CARRIER DETECT (DCD)	1	6
2	RECEIVE DATA (RXD)	1	6
3	TRANSMIT DATA (TXD)
4	DATA TERMINAL READY (DTR)
5	GROUND
6	DATA SET READY (DSR)	5	10
7	REQUEST TO SEND (RTS)	5	10
8	CLEAR TO SEND (CTS)
9	RING INDICATOR (RI)
10	NC

Image 13

Contents With 10/100 Ethernet LAN & AGP4X VGA SBC VersionTrademarks Copyright NoticeSupport Table of Contents Introduction Specifications− For alternative applications, a keyboard and a PS/2 Package Contents SAGP-845EV Layout InstallationLayout Keyboard Power Selection Clear Cmos SetupCompact Flash Card Master/Slave Mode Setting CPU Voltage SettingConnection Table of Connectors Label FunctionFDD1 FDC Connector Floppy Disk Drive ConnectorIDE1 Primary IDE Connector Ultra ATA33/66/100 IDE Disk Drive ConnectorIDE2 Secondary IDE Connector Parallel Port LPT1 Parallel Port ConnectorCOM2 10-pin Connector COM1 10-pin ConnectorSerial Ports USB Port Connector Keyboard ConnectorIrDA Infrared Interface Port LAN RJ45 Connector Fan ConnectorVGA Connector CN4 Audio Connector 2x82.00mm Audio ConnectorsCDIN1 CD-IN Connector 1X42.54mm pin head Right GND LeftCFA1 Compact Flash Storage Card Socket Pin Assignment Compact Flash Storage Card SocketGround Card DETECT1 Card DETECT2 GroundPW1 ATX Power Switch Connector External Switches and IndicatorsPW2 ATX12V Power Connector for CPU CN2 Multiple PanelStarting Setup Award Bios SetupPress DEL to enter Setup IntroductionMain Menu Using SetupKey Function Standard Cmos Features Setup ItemsAdvanced Bios Features Advanced Chipset FeaturesEGA/VGA Standard Cmos SetupMM DD Yyyy Main Menu Selections Options DescriptionIDE MonoOptions Description IDE AdaptersCHS LBAAdvanced Bios Features LAN BootROM Quick Power On Self TestFirst/Second/Third/Other Boot Device Boot Up Floppy SeekTypematic Rate Setting Boot Up NumLock StatusTypematic Delay Msec Gate A20 OptionSmall Logo EPA Show Report No FDD For WinAuto Advanced Chipset FeaturesDram Timing Selectable CAS Latency TimeSystem Bios Cacheable Dram RAS# to CAS# DelayVideo Bios Cacheable Delay TransactionIntegrated Peripherals Flash BiosOn-chip VGA On-Chip Primary/Secondary PCI IDEUart Mode Select IDE HDD Block ModeParallel Port Mode IDE Primary/Secondary Master/Slave UdmaWatchdog Timer Unit Power Management SetupS1POS DpmsSuspend Mode Power ManagementFor SL CPU’s Video Off MethodPrimary IDE Secondary IDE FDD, COM, LPT Port HDD Power DownReset Configuration Data 10 PnP/PCI Configuration SetupResource controlled by IRQ ResourcesIRQ3/4/5/7/9/10/11/12/14/15 assigned to PC Health StatusPCI/VGA Palette Snoop VcoreAuto Detect PCI Clk Frequency/Voltage ControlSpread Spectrum CPU Host / 3V66 / PCI ClockDefaults Menu Enter Password Supervisor/User Password SettingPassword Disabled Save to Cmos and Exit Y/N? Y Exit SelectingExit Without Saving Quit without saving Y/N? YINT 15H AH 6FH Appendix a Watchdog TimerPage IO Address Map Address Range Description Appendix B Address MappingIRQ Mapping Table 1st MB Memory Address Map Memory address DescriptionDMA Channel Assignments Function Bios Update Procedure Appendix C How to Upgrade a New BiosInstall screen Recovering the previous BiosAppendix D AGP Slot