CN0170 HARDWARE MANUAL
Maximum power dissipation is 3.2 watts. No special considerations for
heat sinking are needed if the ambient temperature is less than 70 degrees
Celsius.
The CN0170 has a power supply supervisor circuit on its internal 5 volt
supply. This circuit monitors the supply voltage and operates the system
reset and battery switchover functions. Because of hysteresis on its trip
point voltages, there are no restrictions on power supply voltage rate of
change.
GND: (pin 12,13)
The GND inputs are the power supply return lines. All inputs and outputs
are referenced to this potential.
+5VDC: (pin 11)
The 5VDC output is provided to supply power to potentiometers or a
joystick for use with the ALG inputs. This output may also be used as a
power supply for a modest amount of external circuitry or devices. The
maximum current draw is 300 milliamps for any external load.
Care must be taken not to short the 5VDC output to any output pin or
ground. Failure to do so may result in damage to the CN0170.
AUXILIARY INPUT/OUTPUT CONNECTOR:
This connector is a 10x2 pin socket located inside the CN0170. It is
necessary to remove the cover for access to this connector. The Auxiliary
I/O Connector provides direct access to a Z80 PIO 'B' port. The port is TTL
compatible. When programmed for output, each bit can drive Darlington
transistors (1.5 mA @ 1.5 V). No buffering or isolation is provided. External
circuitry may be required to prevent damage to the CN0170. The user is
responsible to provide the appropriate interface to this port.
The Auxiliary I/O provides up to eight additional bits of digital input or
output. See the SOFTWARE MANUAL, CN0170 TWO AXIS MOTION
CONTROLLER for details on programming these channels.
18
Содержание CN0170
Страница 2: ......
