SERIAL INTERFACE CONNECTOR ELECTRICAL CHARACTERISTICS
OUTPUTS MIN TYP MAX
------- --- --- ---
Vo(-): 13.2 -x- -2.5 V Negative output voltage range
Vo(+): 8.0 -x- 13.2 V Positive output voltage range
Io: -x- -x- 10.0 ma Output current
INPUTS MIN TYP MAX
------ --- --- ---
Vi(+): 3.0 -x- 25.0 V Positive input voltage range
Vi(-): 25.0 -x- 0.5 V Negative input voltage range
Vhy: -x- 1.0 -x- V Input hysteresis voltage
Ii: 0.3 -x- 10.0 ma Input current
Unconnected inputs are interpreted the same as positive input voltages.
GAME CONTROLLER INTERFACE CONNECTOR SPECIFICATION
The two 9-pin D-type connectors with pins (male) are used to
interface to four types of devices:
1. Mouse or trackball, 3 buttons max.
2. Digital joystick, 2 button max.
3. Proportional (pot or proportional joystick), 2 buttons max.
4. Light pen, including pen-pressed-to-screen button.
The connector pin alignment are discussed in sections organized
by similar hardware and/or software operating requirements as shown
in the previous list. Signal names follow those used elsewhere
in this appendix, when possible.
J11 is the right controller port connector (JOY1DAT, POT1DAT).
J12 is the left controller port connector (JOY0DAT, POT0DAT).
NOTE: While most of the hardware discussed below is directly
accessible, hardware should be accessed through ROM kernel software.
This will keep future hardware changes transparent to the user.
- Appendix E 305 -
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