PM5364 pmc-sierra, PM5364 Datasheet - Page 138

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

10.11 JTAG Test Access Port
10.12 DLL
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Table 17 Latency for Different Modes of Operation
Data path
VT1.5 traffic from line
ingress to system
ingress
STS-1 bypass traffic
from line ingress to
system ingress
VT1.5 and STS-1 traffic
from system egress to
line egress
VT1.5 traffic from line
ingress to line egress in
payload processing
loopback (no MSU-Lites
used). Parallel I/Os
STS-1 bypass traffic
from line ingress to line
egress in payload
processing Loopback
(no MSU-Lites used).
Parallel I/Os
VT1.5 traffic from line
ingress to line egress in
hairpinning - ingress
and egress msu-lites
used
STS-1 traffic from line
ingress to line egress in
hairpinning - ingress
and egress msu-lites
used
The JTAG Test Access Port block provides JTAG support for boundary scan. The standard
JTAG EXTEST, SAMPLE, BYPASS, IDCODE and STCTEST instructions are supported. The
TUPP 2488 identification code is 0x153640CD hexadecimal.
The DLL in TUPP 2488 ensures that the REFCLK pin and clocks to internal logic are aligned
correctly.
MSU-Lite Not
Switching (in µs)
34.607
18.686
18.421
19.869
5.318
52.761
36.523
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
MSU-Lite Switching
(in µs)
38.915
22.991
22.741
N/A
N/A
57.1
40.843
Application
ADM
ADM
ADM
Pure Payload
Processing
Pure Payload
Processing
Hair-pinning
Hair-pinning
Released
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