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STANDARD PRODUCT
PM8315 TEMUX
DATASHEET
PMC-1981125
ISSUE 7
HIGH DENSITY T1/E1 FRAMER WITH
INTEGRATED VT/TU MAPPER AND M13 MUX
PROPRIETARY AND CONFIDENTIAL
56
Pin Name
Type
Pin
No.
Function
LDV5
Input
AB17
Line Drop Bus V5 Byte (LDV5).
The incoming
tributary V5 byte signal marks the various tributary V5
bytes. LDV5 marks each tributary V5 byte on the
LDDATA[7:0] bus when high.
LDV5 is sampled on the rising edge of LREFCLK.
LDTPL
Input
AB13
Line Drop Bus Tributary Payload Active (LDTPL).
The tributary payload active signal marks the bytes
carrying the tributary payload which have been
identified by an external payload processor. When this
signal is available, the internal pointer processor can
be bypassed.
LDTPL is high during each tributary payload byte on
the LDDATA[7:0] bus. In floating mode, LDTPL
contains valid data only for bytes in the VC3 or VC4
virtual containers, or the STS-1 SPE. It should be
ignored for bytes in the transport overhead. In locked
mode, LDTPL is low for transport overhead.
LDTPL is sampled on the rising edge of LREFCLK.
LDAIS
Input
AB12
Line Drop Bus Tributary Path Alarm Indication
Signal (LDAIS).
The active high tributary path alarm
indication signal identifies tributaries on the incoming
data stream LDDATA[7:0] that are in AIS state. When
this signal is available, the internal pointer processor
can be bypassed. LDAIS is invalid when LDTPL is low.
LDAIS is sampled on the rising edge of LREFCLK.
RADEASTCK
Input
AA17
Remote Alarm Port East Clock (RADEASTCK).
The
remote serial alarm port east clock provides timing for
the east remote serial alarm port. It is nominally a 9.72
MHz clock, but can range from 1.344 MHz to 10 MHz.
Inputs RADEASTFP and RADEAST are sampled on
the rising edge of RADEASTCK.