DS31256 datasheet(73/183 Pages) MAXIM

73 / 183 page

DS31256 256-Channel, High-Throughput HDLC Controller

73 of 183

Bits 8 to 11/Transmit Flag Generation Bits 0 to 3 (TFG0/TFG1/TFG2/TFG3). These four bits determine how

many flags and interfill bytes are sent between consecutive packets.

TFG3

TFG2

TFG1

TFG0

ACTION

Share closing and opening flag

Closing flag/no interfill bytes/opening flag

Closing flag/1 interfill byte/opening flag

Closing flag/2 interfill bytes/opening flag

Closing flag/3 interfill bytes/opening flag

Closing flag/4 interfill bytes/opening flag

Closing flag/5 interfill bytes/opening flag

Closing flag/6 interfill bytes/opening flag

Closing flag/7 interfill bytes/opening flag

Closing flag/8 interfill bytes/opening flag

Closing flag/9 interfill bytes/opening flag

Closing flag/10 interfill bytes/opening flag

Closing flag/11 interfill bytes/opening flag

Closing flag/12 interfill bytes/opening flag

Closing flag/13 interfill bytes/opening flag

Closing flag/14 interfill bytes/opening flag

Bit 12/Transmit Zero Stuffing Disable (TZSD). When this bit is set low, the HDLC engine performs zero

stuffing on the outgoing data stream. When this bit is set high, the outgoing data stream is not zero stuffed. This

bit is ignored when the HDLC engine is configured in the transparent mode (TTRANS = 1).

DS31256 数据表(PDF) 73 Page - Maxim Integrated Products