cmd6686gx manual - RTD Embedded Technologies, Inc.

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Auxiliary Power, CN3 WARNING! If you improperly connect power, the module will almost certainly be destroyed. Please verify power connections to the module before applying power. The power supply can be conveyed to the module either through the PC/104 bus ( CN1 and CN2) or through the Auxiliary Power Connector, CN3. The cpuModule only uses +5 VDC and ground. +12 VDC, -12 VDC and -5 VDC may be required on other PC/104 boards in the system.. Insufficient current supply will prevent your cpuModule from booting. The gauge and lengthof the wire used for connecting power to the cpuModule must be taken into consideration. Some power connectors have clip leads on them. Make sure that the input voltage does not drop below 4.8V at the 5V power pins (see the table labeled Typical Power Consumption for the cpuModule’s power requirements). A good rule of thumb is to use wire that can supply twice the power your system requires. . Auxiliary Power Connector CN3 Pin Signal Function 1 GND Ground 2 +5 V +5 Volts DC 3 N/C Not Connected 4 +12 V +12 Volts DC 5 -5 V -5 Volts DC 6 -12 V -12 Volts DC 7 GND Ground 8 +5 V +5 Volts DC 9 GND Ground 10 +3.3 V See Note 11 CPU V+ See Note 12 +3.3 V See Note NOTE Connect two separate wires to the +5V pins (2 and 8) on the power connector to ensure a good power supply. We recommend that no less than 22 gague wire be used and the length of this wire should not exceed 3 ft. Always measure the voltage drop from your power supply to the power pins on the cpuModule. The voltage at pins (2 and 8) should be +5V. 32
Facing the connector pins, the pinout of the Auxiliary Power connector is: 11 9 7 5 3 1 CPU V+ GND GND -5V N/C GND 3.3 V 3.3 V +5V -12V +12V +5V 12 10 8 6 4 2 NOTES! -5 VDC, +12 VDC and -12 VDC voltages are not used by the module, but are connected to the PC/104 bus connectors CN1 and CN2. The 3.3 volt pins (10 and 12) on power connector CN3 are used to monitor the onboard 3.3 voltage regulator. In effect, these pins (10 and 12) become outputs. Don’t use these pins as a source of 3.3 volts to another board and don’t connect these pins to a 3.3 volt power supply. The CPU V+ pin (pin 11 of CN3) is used to monitor the onboard CPU regulator which is 2.5 or 2.0 volts. Don’t use this as source of 2.5 or 2.0 volts and don’t connect this pin to a 2.5 or 2.0 volt power supply. If your cpuModule is a 233MHz or 300MHz, pin 11 will be 2.5V or 2.0V respectfully. Pins 10 and 12 on CN3 are floating by default factory setting. These pins are not for monitoring or power. If monitoring is needed at these pins, please contact us for details. Power Supply Protection The cpuModule has protection circuitry which helps prevent damage due to problems with the +5V supply, such as: • Reversed polarity • Overvoltage • Overcurrent The circuitry includes a user-replaceable fuse, which is located near the PC/104 bus connector. This fuse is a: • 3 amp Nano fuse • Littelfuse part number 429003WR 33
Page 1: CMD6686GX cpuModule TM User’s Man
Page 4 and 5: Revision History 99.03.30 New 99.07
Page 6 and 7: Parallel Port Control .............
Page 8 and 9: The CMD6686GX cpuModule The PC/104
Page 10 and 11: Solid State Disk Socket • SSD soc
Page 13 and 14: CHAPTER 2: GETTING STARTED For many
Page 15 and 16: CN17 USB Connector 10 pin For a com
Page 17 and 18: Cable Kits For maximum flexibility,
Page 19 and 20: Connecting the utility cable The Mu
Page 21 and 22: Connecting to the PC/104 Bus The PC
Page 23 and 24: Booting to Boot Block Flash with Fa
Page 25: For More Information This chapter h
Page 28: I/O Connections The cpuModule comes
Page 31: CMD6686GX Connector Locations NOTE!
Page 35 and 36: Facing the serial port’s connecto
Page 37 and 38: Serial Port 2, CN8 The second seria
Page 39 and 40: Connector CN8 in RS-422/485 Mode 5
Page 41 and 42: Parallel Port Connector, CN6 21 BSY
Page 43 and 44: Keyboard Connector Pins on CN5 Pin
Page 45 and 46: USB Connector,CN17 Two USB ports ar
Page 47 and 48: The following table lists signals o
Page 49 and 50: PC/104 Bus Signals MASTER* I During
Page 51 and 52: CHAPTER 4: CONFIGURING THE CPUMODUL
Page 53 and 54: Default Configuration In addition t
Page 55 and 56: Installing SSD Memory This section
Page 57 and 58: Main Menu Setup Fields The followin
Page 59 and 60: BIOS Features Setup The following i
Page 61 and 62: Cyrix 6x86/MII CPUID BIOS Features
Page 63 and 64: Power Management Setup Fields The f
Page 65 and 66: Power Management Setup Fields IRQ t
Page 67 and 68: PNP/PCI Configuration Setup Fields
Page 69 and 70: Integrated Peripherals Setup Fields
Page 71: Exit Setup Fields The following is
Page 74 and 75: Memory Map The module addresses mem
Page 76 and 77: 2 Only one of the I/O addresses sho
Page 78 and 79: The RTD Enhanced Award BIOS The RTD
Page 80 and 81: Cannot initialize controller. Make
Page 82 and 83:
RTD Enhanced Award BIOS POST Codes
Page 84 and 85:
RTD Enhanced Award BIOS POST Codes
Page 86 and 87:
Bypassing the Stored Configuration
Page 88 and 89:
Watchdog Timer Control The cpuModul
Page 90 and 91:
Parallel Port Control The parallel
Page 92 and 93:
Storing Applications On-board The c
Page 95 and 96:
BIOS Extension Devices You can use
Page 97:
Directly Accessing the Solid State
Page 100 and 101:
Jumpers Many cpuModule options are
Page 102 and 103:
JP2 2-pin jumper Open (no terminati
Page 104 and 105:
686GX233 or 686GX300 Processor Ther
Page 106 and 107:
Common Problems and Solutions The f
Page 108 and 109:
two hard drives will not work, but
Page 110 and 111:
How to Obtain Technical Support If
Page 112 and 113:
112
Page 114:
Real Time Devices USA, Inc. P.O. Bo
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