If these two nodes transmit at the same time, each will first transmit the start bit then transmit the first six zeros of their ID with no arbitration decision being made.
22.
A MIDI message start bit ( 0 ) causes a voltage differential on the wire pair ( current loop ) which is seen at the MIDI receiver as a'0 '.
23.
The Model 37 terminal utilizes a serial input / output 10 unit code signal consisting of a start bit, seven information bits, an even parity bit and a stop bit.
24.
The " idle " condition of the circuit is a continuous marking state, with the start of a character signalled by a " start bit ", which is always a space.
25.
Each frame starts with one start bit ( a'0') followed by eight data bits ( least significant bit first ) followed by two stop bits ('1's ).
26.
The master then either ends transmission with a stop bit, or it may send another START bit if it wishes to retain control of the bus for another transfer ( a " combined message " ).
27.
If parity is specified and we use 2 stop bits, the overhead for carrying one 8 bit character is 4 bits ( one start bit, one parity bit and two stop bits )-or 50 %!
28.
Considering the transmission of three additional bits per data byte and the pauses before and after the start bit, this results in a usable data rate of 102 bytes per second, and about 6 kilobytes per minute.
29.
Following the start bit, the character is represented by a fixed number of bits, such as 5 bits in the Baudot code, each either a mark or a space to denote the specific character or machine function.
30.
The sync token might be a single pulse ( a " start bit " as noted above ), or it may be a more complicated syncword or self-synchronizing code such as HDLC or 8B / 10B encoding.
