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23 June 2005 HE104MAN-V8 Manual
Tri-M Engineering Tel: 800.665.5600, 604.945.9565
1407 Kebet Way, Unit 100 Fax: 604.945.9566
Port Coquitlam, BC V3C 6L3 E-mail: info@tri-m.com
Canada Web site: www.tri-m.com
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Figure 2-2, Interrupt IRQ Selection
2.8 Power Management Controller PM104 (optional)
The Power Management Controller (PM104) is a microcontroller “plug-in” module for timed on-off
control of the HE104, control of the optional battery charger and generation of interrupts to the
PC/104 host CPU. The PM104 is programmed in a high level “controller basic language” called
Pbasic. To program the PM104, connect the program cable (PM104-Cable) to connector CN4 on the
HE104 and to the parallel port of any PC compatible computer. PM104 programs can be directly
downloaded or updated using the PM104 utility software.
Connector CN4 Pinout, PM104 Program Connector:
-Terminal 1: PM104 Power (leave disconnected if HE104 powered)
-Terminal 2: Common, connect to pin 25 of PC parallel port.
-Terminal 3: PC0, connect to pin 11 (busy) of PC parallel port.
-Terminal 4: PCI, connect to pin 2 (DO) of PC parallel port.