User manual

PCE-5124 User Manual xii
A.1 Introduction ..................................................................... 92
A.1.1 Watchdog timer overview............................................. 92
A.1.2 Programming the watchdog timer................................. 92
Table A.1:Watchdog timer registers............................. 94
A.1.3 Example program.......................................................... 95
Appendix B I/O Pin Assignments.....................................102
B.1 Floppy Drive Connector (FDD1).................................. 102
Table B.1:Floppy drive connector (FDD1)................. 102
B.2 Parallel Port Connector (LPT1)..................................... 103
Table B.2:Parallel port connector (LPT1) .................. 103
B.3 VGA Connector (VGA1) .............................................. 104
Table B.3:VGA connector (VGA1)............................ 104
B.4 RS-232 Serial Port (COM1).......................................... 105
Table B.4:RS-232 serial port (COM1) ....................... 105
B.5 RS 232/422/485 Serial Port (COM2)............................ 106
Table B.5:RS-232 / 422 / 485 serial port (COM2) ..... 106
B.6 RS-232 Serial Port (COM3-4)....................................... 107
Table B.6:RS-232 serial port (COM3-4).................... 107
B.7 RS-232 Serial Port (COM5-6)....................................... 108
Table B.7:RS-232 serial port (COM5-6).................... 108
B.8 USB Header (USB12 ~ 78)........................................... 109
Table B.8:USB Header (USB12 ~ 78)........................ 109
B.9 PS/2 Keyboard/Mouse Connector (KBMS1)................ 109
Table B.9:PS/2 keyboard/mouse connector
(KBMS1) ................................................... 109
B.10 External Keyboard Connector (KBMS2)...................... 110
Table B.10:External keyboard connector (KBMS2) .. 110
B.11 CPU Fan Power Connector (CPUFAN1)...................... 110
Table B.11: CPU fan power connector (CPUFAN1) . 110
B.12 Power LED and Keyboard Lock Connector (JFP3 /
PWR_LED & KEY LOCK).......................................... 111
Table B.12:Power LED and keyboard lock connector
(JFP3 / PWR_LED & KEY LOCK)......... 111
B.13 External Speaker Connector (JFP2 / SPEAKER) ......... 111
Table B.13:External speaker connector (JFP2 / SPEAK-
ER)........................................................... 111
B.14 Reset Connector (JFP1 / RESET) ................................. 112
Table B.14:Reset connector (JFP1 / RESET)............. 112
B.15 HDD LED (JFP2 / HDDLED) ...................................... 112
Table B.15:HDD LED (JFP2 / HDDLED)................. 112
B.16 ATX Soft Power Switch (JFP1 / PWR_SW) ................ 113
Table B.16:ATX soft power switch
(JFP1 / PWR_SW).................................... 113