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Appendix A Programming the Watchdog Timer .............. 69

A.1 Programming the watchdog timer ..........................................70

Appendix B Installing PC/104 Modules ............................. 73

B.1 Installing PC/104 modules........................................................74

Appendix C Pin Assignments............................................. 77

C.1 Floppy drive connector (CN1) ................................................. 78

C.2 Parallel port connector (CN2) .................................................79

C.3 Keyboard lock, LED connector (CN3).................................... 80

C.4 USB1/USB2 connector (CN4)................................................... 80

C.5 24-bit LCD display connector (CN5) ...................................... 81

C.6 36-bit LCD display connector (CN6) ...................................... 82

C.7 LCD inverter connector (CN7) ................................................ 83

C.8 IR connector (CN8) ...................................................................83

C.9 External speaker connector (CN9) ..........................................84

C.10 VGA connector (CN11) ............................................................ 84

C.11 PC/104 connector (CN12)......................................................... 85

C.12 Ethernet connector (CN13) ......................................................85

C.13 COM2 RS-422/485 connector (CN14)..................................... 86

C.14 COM2 RS-232 connector (CN15)............................................ 87

C.15 COM1 RS-232 connector (CN16)............................................ 88

C.16 External keyboard connector (CN17) .....................................88

C.17 ATX power connector (CN18) .................................................89

C.18 AT power connector (CN20) ....................................................89

C.19 Keyboard and PS/2 mouse connector (CN21)........................90

C.20 CompactFlash™ card connector (CN24) ...............................91

C.21 HDD LED connector (CN25) ...................................................92

C.22 System reset switch connector (CN26)....................................92

C.23 ATX power button (CN27).......................................................92

C.24 Enhanced IDE connector (CN28) ............................................93

Appendix D System Assignments ..................................... 95

D.1 System I/O ports ........................................................................96

D.2 DMA channel assignments .......................................................97

D.3 Interrupt assignments...............................................................98

D.4 1st MB memory map.................................................................99

Appendix E LCD Services ................................................. 101

E.1 LCD services ............................................................................102

Advantech PCA-6751 Series User Manual

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