STANDARD PRODUCT
PM5365 TEMAP
DATASHEET
PMC-1991148
ISSUE 3
HIGH DENSITY VT/TU MAPPER
AND M13 MULTIPLEXER
Figure 23: T1/E1 Line Loopback
CTCLK*
TRANSMITTER
TOPS
ED[1:28]
ECLK[1:28]
ESIF
Egress
Timing Options
Interface
TJAT
TxCLK[1:28]
TxD[1:28]
Digital Jitter
Attenuator
PMON
Performance
Li ne Loopback
Monitor
ID[1:28]
ICLK[1:28]
ISIF
Ingress
Interface
RJAT
RxCLK[1:28]
RxD[1:28]
Digital Jitter
Attenuator
RECEIVER
T1/E1 Diagnostic Digital Loopback
When Diagnostic Digital loopback is initiated, by writing a 1 to the DLOOP bit in
the T1/E1 Diagnostics register (000DH + N*80H, N=1 to 28), the appropriate
T1/E1 stream in the TEMAP is configured to internally connect its transmit clock
and data (shown as TxD[x] and TxCLK[x] in the diagnostic loopback figure) to the
receive clock and data (shown as RxD[x] and RxCLK[x] in the diagnostic
loopback figure) The data flow through a single T1/E1 performance monitoring
block in this loopback condition is illustrated in Figure 24.
Proprietary and Confidential to PMC-Sierra, Inc. and for its Customers’ Internal Use
156
PMC [ PMC-SIERRA, INC ]
