PM8610-BIAP PMC [PMC-Sierra, Inc], PM8610-BIAP Datasheet - Page 31

• Manufacturer Part Number: PM8610-BIAP
• Description: SBS Telecom Standard Product Data Sheet Preliminary
• Manufacturer: PMC [PMC-Sierra, Inc]

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000168, Issue 3
Pin Name
RPL
RV5
Type
Input
Input
Pin No.
D10
C9
Receive Payload (RPL). This receive SBI336 data bus payload
signal indicates valid tributary payload data when configured for the
receive SBI336 byte-wide interface. In TelecomBus mode this
signal indicates valid path payload.
In SBI336 mode:
This active high signal indicates valid data within the SBI336
structure. This signal is high during all octets making up a tributary
which includes all octets shaded grey in the framing format tables.
This signal goes high during the V3 or H3 octet within a tributary to
accommodate negative timing adjustments between the tributary
rate and the fixed SBI336 bus structure. This signal goes low
during the octet following the V3 or H3 octet within a tributary to
accommodate positive timing adjustments between the tributary
rate and the fixed SBI336 bus structure. For fractional rate links
this signal indicates that the current octet is carrying valid data
when high.
Multiple SBI336 devices can drive this signal at uniquely assigned
tributary columns within the SBI336 bus structure.
In TelecomBus mode:
This signal distinguishes between transport overhead bytes and
synchronous payload bytes. RPL is set high to mark each payload
byte on RDATA[7:0] and is set low to mark each transport
overhead byte on RDATA[7:0].
RPL is sampled on the rising edge of SYSCLK.
RPL has an integral pull-up resistor.
Receive Payload Indicator (RV5). This is the receive payload
indicator that locates the floating payload on the SBI336 or
TelecomBus when configured for the receive byte-wide interface.
In SBI336 mode:
This active high signal locates the position of the floating payloads
for each tributary within the SBI336 structure. Timing differences
between the port timing and the SBI336 bus timing are indicated by
adjustments of this payload indicator relative to the fixed SBI336
structure. All movements indicated by this signal must be
accompanied by appropriate adjustments in the RPL signal.
Multiple devices can drive this signal at uniquely assigned tributary
columns within the SBI336 structure.
In TelecomBus mode:
This signal identifies tributary payload frame boundaries on the
receive parallel data bus. RV5 is set high to mark the V5 bytes on
the bus.
RV5 is sampled on the rising edge of SYSCLK.
RV5 has an integral pull-up resistor.
Function
SBS Telecom Standard Product Data Sheet
Preliminary
31