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oric:hardware:telestrat_joystick_curcuit

Telestrat Joysticks ports

The Telestrat provides 2 joystick ports on either side of the machine. Both ports accept standard Atari type digital joysticks.

The left side joystick port will accept a single (fire) button joystick and is connected internally to the second VIA. One can also connect an Atari/Amiga or Telestrat mouse to it although only one button will be usable.

The right side joystick port will accept a 3 button mouse(as above) or joystick and is also connected internally to the second VIA.

PB0, PB1, PB2, PB3, PB4 (respectively right, left, fire, down, up)

PB6 selects left port and PB7 select right port (mouse)

Joystick

Telestrat mouse ports

Pinouts

1 —— Depl V

2 —— Depl H

3 —— Quad V

4 —— Quad H

Port Electronics

Internally there are two CA3083 chips (5 NPN transistors). Each transistor is connected to the DB9 joystick ports. However buttons 2 and 3 are connected directly to the second VIA.

oric/hardware/telestrat_joystick_curcuit.txt · Last modified: 2010/02/01 15:55 by jede