參數(shù)資料
型號： MPC823
廠商： Motorola, Inc.
英文描述： Communication Processor Module
中文描述： 通信處理器模塊
文件頁數(shù)： 32/74頁
文件大?。?/td> 234K
代理商： MPC823
Communication Processor Module
16-410
MPC823 REFERENCE MANUAL
MOTOROLA
S
C
1
P
16.11.7.5 USING THE TIME-SLOT ASSIGNER FOR SYNCHRONIZATION.
The time-slot
assigner offers a method to internally synchronize a SMCx Transparent channel without
using the SMSYNx pin. This method is similar to that of the SMSYNx pin, except that the
synchronization event is not the falling edge of the SMSYNx signal, but the first time-slot for
this SMCx receiver/transmitter after the frame sync indication. Refer to
Section 16.7 The
Serial Interface with Time-Slot Assigner
for further information about configuring
time-slots for the SMCs and SCCs.
The time-slot assigner allows the SMCx receiver and transmitter to be enabled
simultaneously and synchronized, a capability that the SMSYNx pin does not provide. Refer
to Figure 16-119 for an example of synchronization using the time-slot assigner.
Figure 16-119. Time-Slot Assigner Synchronization
TDM RX
SMC1
SMC1
TDM TX
SMC1
TDM TXSYNC
TDM TX CLOCK
SMC1
TDM RX SYNC
TDM RX CLOCK
AFTER TEN IS SET,
TRANSMISSION
BEGINS HERE
IF SMC RUNS OUT OF TX BUFFERS AND NEW ONES
ARE PROVIDED LATER, TRANSMISSION BEGINS AT
THE BEGINNING OF EITHER TIME-SLOT
AFTER REN IS SET
OR AFTER ENTER HUNT
MODE COMMAND,
RECEPTION
BEGINS HERE
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