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Graphics Interchange Format  |  1996-06-12  |  86KB  |  552x429  |  4-bit (16 colors)
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OCR: IEEE 802.9 TDM FRAME FORMATS 3a) Default TDM Frame Format 2 8 TDM |HMC) ress B1 B2 AC MIN PAYLOAD 3b) 20.48Mbps TDM Frame 2 3 5 TDM HMC res 81 MIN 8 63 octets of Packet Payload Space 70 AC.172 63 octets of Packel Payload Space 134 AC | 136 63 octets of Packet Payload Space 198 AC 200 63 octets of Packet Payload Space 262 AC 264 56 octets of Packet Payload Space 319 FIGURE 3: The default time-division multiplexing (TDMI frame structure in 3a (top) includes a Synchronization (SYN) field, a TDM Maintenance (TDM MIN) field, a Hybrid Multiplexer Control (HMC) field, a Reserved (RES) field, a D field, BI and 82 fields, an Access Control (AC) field, and a Payload field. A TDM frame for rates above 4.096Mbps, the AC field may need to be repeated periodically to minimize buffering, os 3b (bottom) shows.