PM5364 pmc-sierra, PM5364 Datasheet - Page 51

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

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Pin Name
EJ0
LCLK
TPOH[4]
TPOH[3]
TPOH[2]
TPOH[1]
TPOHEN[4]
TPOHEN[3]
TPOHEN[2]
TPOHEN[1]
Tributary Overhead and Alarm Interface (16 pins)
Type
Input
Input
Output
Output
Pin No.
AN8
AK33
V2
T4
R3
P2
U4
T2
R2
P1
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Function
Egress J0(C1) Frame Pulse. The egress bus
timing signal, EJ0, is a system reference J0(C1)
pulse that uses a programmable offset to locate
system egress J0(C1).
EJ0 should occur every 4 frames or multiple
thereof.
EJ0 is also used to control tributary multiframe
alignment (H4) in the VTPA block.
EJ0 is sampled on the rising edge of REFCLK.
Performance Monitor 1 second clock. The
accuracy of the clock is application dependent,
correct operation of the device does not require a
specific tolerance. The LCLK input allows external
logic to control the PMON transfers within the
TUPP 2488 device. A rising edge on LCLK
initiates the transfer of PMON statistics within the
device.
Minimum clock low time is 1.285us.
LCLK is an asynchronous input.
Tributary Path Overhead Data. The tributary path
overhead data signal (TPOH[4:1]) contains the
tributary path overhead bytes (V5, J2, Z6/N2 and
Z7/K4) of all the tributaries extracted from the
corresponding line ingress STS-12/STM-4 data
stream in non-TU3 mode. In TU-3 mode,
TPOH[4:1] contains the tributary path overhead
byes (J1, B3, C2, G1, F2, H4, Z3/F3, Z4/K3, and
Z5/N1 of all the tributaries extracted from the
corresponding line ingress STS-12/STM-4 data
stream.
TPOH[4:1] is updated on the rising edge of
REFCLK.
Tributary Path Overhead Enable. The tributary
path overhead enable (TPOHEN[4:1]) signals may
be used to identify tributary path overhead bytes
that are being presented on the TPOH stream of
the corresponding STS-12/STM-4 for the first time.
Each TPOHEN signal is set high when a fresh
overhead byte is available on the corresponding
POH stream. TPOHEN is set low when the
tributary path overhead byte available on the
corresponding TPOH stream has already been
shifted out in a previous frame.
TPOHEN[4:1] is updated on the rising edge of
REFCLK.
Minimum clock high time is 1.286us.
Released
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