Tri-M Systems HE104 - Manual (Page 15)

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: [email protected]
Canada Web site: www.tri-m.com
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Table 2.1 PM104 Pin Number and I/O Functions
IC3 PIN# PM104 Microcontroller Description (IC3) HE104 Function or Connection Battery Charger Function
1 PM104 Supply Voltage HE104 Supply Voltage
2 Common Common
3 PC0 (PC out) Connector CN4-3
4 PCI (Pc in) Connector CN4-4
5 plus5V input/output No connection
6 Reset No connection
7 P0 (Input/Output Pin 0) Input Voltage Status
8 P1 (Input/Output Pin 1) HE104 On/Off Control HE104 On/Off control
9 P2 (Input/Output Pin 2) Connector CN6-8 Analog/Digital Chip Select
10 P3 (Input/Output Pin 3)* Int2, Connector CN6-7* Spare* Input/Output
11 P4 (Input/Output Pin 4) Connector CN6-6 Data Input/Output Line
12 P5 (Input/Output Pin 5) Connector CN605 Data Clock
13 P6 (Input/Output Pin 6)* Int1, Connector CN6-4* Spare* Input/Output
14 P7 (Input/Output Pin 7) Connector CN6-3 Analog Current Limit
*If Interrupt function is not used, this PM104 line can be used for general purpose Input/Output.
2.9 Low Input Alarm
This output signals the Power Management circuit (PM104) or external circuitry that main input power
has failed. The Low Input Alarm signal has a 100K current limiting resistor in a series.
If the PM104 is not installed, then external circuitry can access the Low Input Alarm output on
connector IC3-7.