Motorola MSC8101 ADS User's Guide Page 209

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Connect the TDM Interface to T1/E1
Multi-Channel Controllers (MCCs) 10-7
Figure 10-5. T1/E1 Transceiver Interface Example
The TDM interface connection is relatively simple, consisting of a transmit and receive
clock, synchronization signals, and data signals. The MSC8101 expects L1RCLKB and
L1RSYNCB synchronization to be generated by an external device—in this case, the
T1/E1 line transceiver. The T1/E1 frame is delimited by the transceiver synchronization
signal (EFP/IFP) that marks the start of the first time slot in the frame and by a clock
(ICLK/TLCLK) that controls the line bit rate. The T1/E1 frame is split into multiple time
slots, each designated for a different logical channel. Figure 10-6 illustrates an T1/E1
frame consisting of thirty-two 8-bit logical channels (with common
L1RSYNC/L1TSYNC and L1RCLK/L1TCLK used).
L1TSYNCB
L1RSYNCB
L1RXDB
L1TXDB
L1RCLKB
L1TCLKB
MCC2
Microprocessor
IFP[6]
ID[6]
ED[6]
ICLK[6]
TLCLK[6]
TLD[6]
Receive PMC Line
Interface Unit
PM4314
MSC8101 PM6388
EFP[6]
Memory Controller
RLCLK[6]
RLD[6]
Transformer
RJ45
Interface
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