IBM BDM-610000049 user manual Bridge Link CN4, Legacy/ISA DMA Request, Serial Interrupt Request

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Bridge Link (CN4)

The Bridge Link connector allows devices that requires Legacy/ISA interrupts to interface with the cpuModule. When ISA devices are installed in the system (via a PCI to ISA bridge card), the Bridge Link connector provides Legacy/ISA DMA request signals, as well as a serial interrupt signal which permits access to all available system interrupts.

Multiple devices may utilize the serial interrupt signal, SERIRQ, which is decoded on the cpuModule. Only one device may use the DMA request and grant signal pair.

Table 34 Bridge Link (CN4)

Pin

Signal

Function

 

 

 

1

GND

Ground

 

 

 

2

DMAREQ

Legacy/ISA DMA Request

 

 

 

3

SERIRQ

Serial Interrupt Request

 

 

 

4

DMAGNT

Legacy/ISA DMA Grant

 

 

 

Facing the connector pins, the pinout is:

31

SERIRQ

GND

DMAGNT

DMAREQ

42

52 CMX158886 cpuModule

BDM-610000049 Rev G

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Contents CMX158886 cpuModules BDM-610000049 Revision GRevision History Revision Date Reason for Change 12/13/06 Initial releaseCMX158886 cpuModules Iv CMX158886 cpuModule Table of Contents MultiPort CN6 Audio CN11MultiPort Advanced Digital I/O Ports aDIO Port 1 Data register is a read/write byte directionApplication Notes System RecoveryUser Eeprom 107 CMX158886 cpuModule Chapter CMX158886 cpuModules CMX158886 cpuModule top viewThermal Monitor Error-Correction Codes Selected Models OnlyEnhanced Intel SpeedStep PX only ADIO with Wake-on-aDIOCMX158886 cpuModule CMX158886 cpuModule Model Options Ordering InformationCMX158886 Model Options Part Number DescriptionCable Kits and Accessories Board Features VGA, SVGA, XGA, SXGA, Uxga Bios 10 CMX158886 cpuModule Block Diagram CMX158886 cpuModule Simplified Block DiagramPower Consumption SpecificationsPhysical Characteristics Electrical CharacteristicsIoc Electrical CharacteristicsSymbol Parameter Test Condition Min Max VosOutput Voltage Low Common ModeOutput Voltage High Input Voltage HighContact Information 16 CMX158886 cpuModule Getting Started Connector Locations CMX158886 Connector LocationsCMX158886 Basic Connectors Connecting to the PC/104-PlusPCI Bus Connecting the Utility CableConnecting a Keyboard PCI Bus Signaling Levels Slot Selection SwitchesPCI Bus Expansion Card Power Booting the CMX158886 cpuModule for the First Time Connecting the cpuModule Proper Grounding Techniques PC/104-PlusPCI Bus 120-pin Pin Signal Function Auxiliary Power CN3Auxiliary Power Connector CN31 GND Pin Signal Function In/Out Utility Port Connector CN5Utility Port Connector CN5 SpeakerKeyboard System ResetSoft Power Button MouseBattery Svga Video Connector CN18 Svga Video Connector CN18Svga Video Resolutions Resolution Colors Refresh RatesManufacturer Model Number Resolution Color Depth Lvds Flat Panel Video Connector CN19Flat Panel Video Connector CN19 Tested Lvds PanelsPin Signal Eide Connector CN10Eide Connector CN101 ATA/IDE Disk Chip Socket U161 Installing and Configuring the ATA/IDE Disk ChipATA/IDE Disk Chip Socket U16 CMX158886 before and after ATA/IDE Disk Chip Installation Serial Port in RS-232 Mode RS-232 Serial Port DefaultSerial Port Settings Serial Port 1 CN7 and Serial Port 2 CN8Full-Duplex Connections Half-Duplex RS-485 ModeRS-422 or RS-485 Serial Port PortTransmit Data + Serial Port in RS-422/485 ModePin Signal Function In/Out DB-9 Receive Data + ResevedDual Serial Port Modes Dual Serial Port ModesDual Serial Port Connections COM a RS-232 and COM BRS-232COM a RS-422/485 and COM B RS-232 COM a RS-422/485 and COM B RS-422/485MultiPort aDIO Pinout MultiPort Configured as an Advanced Digital I/O aDIO PortMultiPort CN6 CN6 Pin FunctionCN6 Pin Signal Function In/Out DB-25 MultiPort Configured as a Parallel PortMultiPort Connector CN6 as a Parallel Port Odd pins MultiPort Configured as a Floppy Drive ControllerMultiPort Connector Floppy Pinout CN61 CN6 Pin Function DB-25 Floppy Drive PinUSB 2.0 Connector CN17 USB Connector CN1746 CMX158886 cpuModule RJ-45 Pin Pin DIL Pin Signal Function In/Out Ethernet 10/100Base-T and -TX Connector CN20Ethernet Connector CN20 Audio CN11 Audio Connector CN11Pin DIL Pin Signal Function In/Out Pin PC/104-PlusBus Signal Assignments1PC/104-PlusPCI Bus CN16 PC/104-PlusPCI Bus Signals Address and DataPower Supplies and VIO Legacy/ISA DMA Request Bridge Link CN4Bridge Link CN4 Serial Interrupt RequestFan Power, +5 V CN14 External Power Management CN12Optional RTC Battery Input CN13 +5 Volts DC, switched Fan Power, Switched CN15Fan Power, Switched CN15 Using the cpuModule Entering the Bios Setup RTD Enhanced AMI BiosConfiguring the RTD Enhanced AMI Bios Setup KeysMain Menu Setup Fields Main Menu Setup FieldsPower On Self Test Post Codes Field Active Keys SelectionsBooting to Boot Block Flash with Fail Safe Boot ROM Address hex Description Memory MapFirst Megabyte Memory Map Address Range hex Bytes Device Address MapO Addresses Reserved for the CMX158886 cpuModule Interrupt Normal Use Hardware InterruptsHardware Interrupts Used on the CMX158886 cpuModule Port 0 Data I/O Address 450h MultiPort Advanced Digital I/O Ports aDIODigital I/O Register Set Port 1 Data I/O Address 451hMulti-Function at Address 452h1 DIO-Control I/O Address 453h-Read AccessDIO-Control I/O Address 453h-Write Access Wake Control I/O Address 451h =Interrupt is enabledInterrupts ReservedInterrupt and Wake Event Generation WakeEnable Int Mask FunctionWake-on-aDIO No Interrupt or Wake event is generatedAC’97 Audio MultiPort Parallel Port ControlMultiPort Floppy Drive Ethernet 10/100Base-T and -TXCable Detection IDE Controller ConfigurationCable Modes Legacy Mode and Native Mode IDE Configuring the ATA/IDE Disk Chip SocketOverview Accessing the RTC RegistersReal Time Clock Control Real Time Clock Registers0Ch Registers Registers Function Hex decimal0Bh 0DhWatchdog Timer Control Watchdog Timer Control I/O Address 455hThermal Management Fan ModeFurther Temperature Reduction Power Button Modes Power ManagementAdvanced Configuration and Power Interface Acpi Low-Power Wake OptionsAT vs. ATX Power Supplies ATX Power Supply SignalsReducing Power Consumption Multi-Color LED I/O Address 456h Multi-Color LEDLED Colors Manual LED ColorsReset Status I/O Address 457h Write Access Reset Status RegisterReset Status I/O Address 457h Read Access Reset Status Description and Priorities Address Reset DescriptionDvmt Mode Select User Eeprom I/O Address 456h Bit Signal Function Read / WriteUser Eeprom Eeprom Register DescriptionFeatures and Settings That Can Affect Boot Time Booting to the Fail Safe Boot ROM Fsbr System RecoveryLoading Default Bios Settings How long does it take to respond to an interrupt? What happens when an interrupt occurs?Basic Interrupt Information for Programmers Interrupt Request LinesPCI Interrupts Writing an Interrupt Service Routine ISRIntel 8259 Programmable Interrupt Controller Sample CodeAppendix a Hardware Reference Jumper Settings and Locations JP9 JP2JP12 Jumper Pins Function DefaultJP11 JP13Device ID Vendor ID Description Onboard PCI DevicesOnboard PCI Devices Physical Dimensions CMX158886 Physical Dimensions ±0.005 inches90 CMX158886 cpuModule Appendix B Troubleshooting Problem Cause Solution Common Problems and SolutionsTroubleshooting Troubleshooting a PC/104-PlusSystem Troubleshooting cont’dHow to Obtain Technical Support Appendix C Idan Dimensions and Pinout Idan Dimensions and Connectors IDAN-CMX158886 Connectors1Idan Pin # Signal Function PS/2 Mouse 6-Pin mini-DIN Connector femaleKeyboard 6-Pin mini-DIN Connector female External I/O ConnectionsIdan Pin # Signal Function Mode COM1/COM2 RS-232 9-Pin D Connector maleCOM1/COM2 RS-422/485 9-Pin D Connector male MultiPort 25-Pin D Connector female Idan Pin # ADIO Port Parallel Port Floppy Port CPU Pin #Panel 20-Pin mini D Connector female Idan Pin # Signal Name CPU Pin #Ground + 5 Volts Svga 15-Pin High Density D Connector femaleIdan Pin # Signal Function CPU Pin # Ground Reserved DDC Data Monitor dataIdan Pin # 10Base-T Signal CPU Pin # USB 9-Pin D Connector maleEthernet 9-Pin D Connector female Receive + Reserved Transmit + GroundAudio 9-Pin D Connector female Idan Pin # Signal CPU Pin #Idan Dimensions and Connectors BRG version only IDAN-CMX158886-BRG Connectors1BRG Pin # Function Idan Pin # ADIO 37-Pin D Connector femaleExternal I/O Connections BRG version only 106 CMX158886 cpuModule Drivers and Example Programs PC/104 and PC/104-PlusSpecificationsApplication Notes Interrupt Programming108 CMX158886 cpuModule Appendix E Limited Warranty 110 CMX158886 cpuModule

BDM-610000049 specifications

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