PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 54

• Manufacturer Part Number: PM5381-BI
• Description: ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
Pin Name
OOF
SALM
RALM
CSUCLKO
CSUCLKI
CRUCLKO
Type
Output
Output
Output
Output
Input
Output
Pin
No.
AH27
AG26
AK28
AG22
AK24
AJ23
Function
The active high out of frame (OOF) signal indicates when an
out of frame condition is declared by the framing block.
OOF is set high while the framing block is out of frame. An
out of frame condition is declared when four consecutive
erroneous framing patterns (A1 and A2 bytes) have been
detected. OOF is set low while the framing block is in frame.
OOF is updated on the rising edge of RCLK.
The section alarm (SALM) signal is set high when an out of
frame (OOF), loss of signal (LOS), loss of frame (LOF), line
alarm indication signal (LAIS), line remote defect indication
(LRDI), section trace identifier mismatch (TIM-S), section
trace identifier unstable (TIU-S), signal fail (SF) or signal
degrade (SD) alarm is detected. Each alarm indication can
be independently enabled using bits in the S/UNI-2488 SARC
Section SALM Enable registers. SALM is set low when none
of the enabled alarms are active.
Section Alarms can only be extracted from the first STS-12
slice in this manner.
SALM is updated on the rising edge of RCLK.
The Receive Alarm (RALM) signal is the output of alarms of
the receive path. Each alarm represents the logical OR of the
SALM, LOP-P, AIS-P, RDI-P, ERDI-P, LOPC-P, PAISC-P,
UNEQ-P, PSLU, PSLM, PDI-P, TIU-P, TIM-P status of the
path. The selection of alarms to be reported is controlled by
the S/UNI-2488 SARC Path RALM Enable registers. Receive
Alarms can only be extracted from the first STS-12 slice in
this manner.
RALM is updated on the falling edge of ROHCLK.
Please refer to the individual alarm interrupt descriptions and
Functional Description Section for more details on each
alarm.
The JAT-CSU output clock (CSUCLKO) is used for PMC test
purposes only. It must be left as a no-connect (NC) during
the normal mode of operation.
The JAT-CSU input clock (CSUCLKI) is used for PMC test
purposes only. It must be tied to VSS during the normal
mode of operation.
The CRU output clock (CRUCLKO) is used for PMC test
purposes only. It must be left as a no-connect (NC) during
the normal mode of operation.
S/UNI-2488 Telecom Standard Product Datasheet
Released
54