Phoenix LTX Accessory Protocol

Phoenix LTX accessory devices communicate with the tagger through the accessory connector using a bidirectional serial protocol and several signal lines.

Serial data is transferred using the following parameters:

• 2,000 baud (500µs/bit)
• 1 start bit
• 8 data bits
• 2 stop bits
• No parity

Data is transferred in blocks with a minimum 10ms delay between blocks.

General

• Accessory Connector
• Block Format

Block Types

• List of All Block Types
• Roll Call
• Blaster Status
• Extended Status
• Coprocessor Game
• LCD Game
• No Accessory
• Reset All
• Roll Reply
• Barrel Reply
• Barrel Seen
• Load Special
• Barrel Acknowledge
• Arm Special
• Reset Barrel
• Power Up Reply
• Radar Reply
• Master Reply
• Rail Host Reply
• Rail Host Seen
• Team Data

Links

• Signal information from Brian Farley
• LTX-RapidFire accessory by Ryan Bales