1.1 Basic Bus Signals
The host initiates every communication on the bus at the bit-level. This means that for
every bit that is to be transmitted, regardless of direction, the host has to initiate
the bit transmission. This is done by pulling the bus low, which will synchronize the
timing logic of all units. There are five basic commands for communication on the 1-Wire
bus:
- ‘Write
1’. - ‘Write
0’. - ‘Read’.
- ‘Reset’.
- ‘Presence’.