Whats the ComLynx port like?
A. There is limit of 18 players via ComLynx. In practice it may be possible to connect more units together, but to operate within specifications, the drivers in the Lynx cannot drive over more than 17 units with pull-ups on the serial ports. ComLynx runs from 300.5 to 62.5K baud. It works on a “listen and send” structure. Data transmission between Lynxes is done in the background, freeing up the CPU to run the game instead of communicating. It’s called “RedEye” in-house at Atari, named after an early idea of having Lynxes communicate with infra-red transmissions. It uses a three-wire cable (+5V/Ground/Data) and allows for bi-directional serial communications. The system frames messages in terms of 11-bit words, each consisting of a start bit, eight data bits, a parity bit, and a stop bit. The ComLynx port is used solely for communications; it can’t be used to control other aspects of the Lynx, though in theory it can be used to send signals to external devices.