Abr transmit flow (continued) -24 – Motorola MPC8260 User Manual

Page 804

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29-24

MPC8260 PowerQUICC II UserÕs Manual

MOTOROLA

Part IV. Communications Processor Module

Figure 29-13. ABR Transmit Flow (Continued)

B-RM/DATA In Rate Cell Tx

B-RM In Rate Cell Tx

Turn-around

and

(First-turn or not

data-in-queue)

CI-TA = CI-TA || CI-VC

Send RM cell (DIR = backwards, CCR-TA, ER-TA, MCR-TA,

CI-TA, NI-TA, CLP=0)

CI-VC = 0

Turn-around = first-turn = FALSE

EXIT

Send Data Cell
CLP = EFCI = 0

Count = Count+1

Schedule:Time_to_send = Now+1/ACR

EXIT

Data Cell Tx

Count = Count+1

Destination End-Sys 1,2,3,4

Yes

No

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