PM8610-BIAP PMC [PMC-Sierra, Inc], PM8610-BIAP Datasheet - Page 32

• 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
RTPL
RTAIS
RJUST_REQ
RJUST_REQ
(continued)
Type
Input
Input
Input
Pin No.
B8
A7
A11
Receive Tributary Payload (RTPL). This signal indicates valid
tributary payload data when configured for the receive byte-wide
TelecomBus interface.
RTPL is set high during valid VC11 and VC12 bytes. RTPL is set
low for all transport overhead bytes, high order path overhead
bytes, fixed stuff column bytes and tributary transport overhead
bytes (V1,V2,V3,V4).
RTPL is ignored when configured for SBI336 mode.
RTPL is sampled on the rising edge of SYSCLK.
RTPL has an integral pull-up resistor.
Receive Tributary AIS Indicator (RTAIS). This signal indicates
tributaries in low order path AIS state when configured for the
receive byte-wide TelecomBus interface.
RTAIS is set high when the tributary on the receive bus is in AIS
state and is set low when the tributary is out of AIS state.
RTAIS is ignored when configured for SBI336 mode.
RTAIS is sampled on the rising edge of SYSCLK.
RTAIS has an integral pull-up resistor.
Receive Justification Request (RJUST_REQ). This is the receive
side justification request when configured for SBI336 byte-wide
interface instead of the Serial SBI336S interface and when
connecting to a PHY device. This signal is not used when
connecting to a SBI336 link layer device nor when in TelecomBus
mode.
The SBI336 Bus Justification Request signal, RJUST_REQ, is
used to speed up, slow down or maintain the minimal rate of a
slave timed SBI device.
This active high signal indicates negative timing adjustments on the
SBI336 bus when asserted high during the V3 or H3 octet,
depending on the tributary type. In response to this the slave timed
SBI336 device should send an extra byte in the V3 or H3 octet of
the next frame along with a valid payload signal indicating a
negative justification.
This signal indicates positive timing adjustments on the SBI336 bus
when asserted high during the octet following the V3 or H3 octet,
depending on the tributary type. The slave timed SBI336 device
should respond to this by not sending an octet during the V3 or H3
octet of the next frame along with a valid payload signal indicating
a positive justification.
For fractional rate links this signal is asserted high during any
available information byte to indicate to the slave timed SBI336
device that the timing master device is able to accept another byte
of data. For every byte that this signal is asserted high the slave
device is expected to send a valid byte of data.
All timing adjustments from the slave timed device in response to
the justification request must still set the payload and payload
indicators appropriately for timing adjustments.
RJUST_REQ is sampled on the rising edge of SYSCLK.
RJUST_REQ has an integral pull-up resistor.
Function
SBS Telecom Standard Product Data Sheet
Preliminary
32