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2. High-Level Data Link Control - Wikipedia

   en.wikipedia.org/wiki/High-Level_Data_Link_Control

   This command solicits a response from the secondary. With the poll bit set, it acts like any other poll frame, without the acknowledgement that must be included in I or S frame. With the poll bit clear, it has a special meaning in normal response mode: the secondary may respond, even though it has not received the poll bit. This is rarely used ...

3. Superframe - Wikipedia

   en.wikipedia.org/wiki/Superframe

   In order to determine where each channel is located in the stream of data being received, each set of 24 channels is aligned in a frame. The frame is 192 bits long (8 * 24), and is terminated with a 193rd bit, the framing bit, which is used to find the end of the frame. In order for the framing bit to be located by receiving equipment, a ...

4. Frame synchronization - Wikipedia

   en.wikipedia.org/wiki/Frame_synchronization

   Correct framing is verified when almost all framing bits (minus a small allowance for transmission errors) have their predicted values. Syncword and flag sequence framing Rather than a single bit, some systems use a multi-bit syncword in each frame, or a flag sequence that marks the beginning and end of each frame.

5. Frame (networking) - Wikipedia

   en.wikipedia.org/wiki/Frame_(networking)

   A frame is "the unit of transmission in a link layer protocol, and consists of a link layer header followed by a packet." [2] Each frame is separated from the next by an interframe gap. A frame is a series of bits generally composed of frame synchronization bits, the packet payload, and a frame check sequence.

6. Universal asynchronous receiver-transmitter - Wikipedia

   en.wikipedia.org/wiki/Universal_asynchronous...

   Start bit (logic low (0)): the start bit signals to the receiver that a new character is coming. Data bits: the next five to nine bits, depending on the code set employed, represent the character. Parity bit: if a parity bit is used, it would be placed after all of the data bits. The parity bit is a way for the receiving UART to tell if any ...

7. Serial port - Wikipedia

   en.wikipedia.org/wiki/Serial_port

   The speed (or baud rate) includes bits for framing (stop bits, parity, etc.), thus the effective data rate is lower than the baud rate. For 8-N-1 encoding, only 80% of the bits are available for data (for every eight bits of data, ten bits are sent over the serial link — one start bit, the eight data bits, and the one stop bit). [24]

8. Vertical interval timecode - Wikipedia

   en.wikipedia.org/wiki/Vertical_interval_timecode

   Field flag (bit 35 for 29.97/30 frame/s, bit 75 for 25 frame/s): This is an additional least-significant bit for the frame number, distinguishing the two interlaced fields in one video frame. It is set to 0 during the first field of a frame, and to 1 during the second. This bit replaces the "polarity correction" bit in linear timecode.

9. CRC-based framing - Wikipedia

   en.wikipedia.org/wiki/CRC-based_framing

   The first bit of each frame carries one bit out of a special pattern. A receiver finds this special pattern by sequentially looking for the bit position in the receive data where a bit from this pattern shows up every 193rd byte. It was convenient for StrataCom to make the length of one cell equal to the length of one T1 frame [2] because a ...