PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Pin Name
Type
Pin
No.
Function
OOF
Output
AH27 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
errored 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.
SALM
Output
AG26
SALM is updated on the rising edge of RCLK.
RALM
Output
AK28 The Receive Alarm (RALM) signal is a multiplexed output of
individual 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.
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.
CSUCLKO
CSUCLKI
CRUCLKO
Output
Input
AG22 This clock is used for PMC test purposes only. It must be left
as a no connect (NC) during the normal mode of operation.
AK24 This clock is used for PMC test purposes only. It must be tied
to VSS during the normal mode of operation.
Output
AJ23
This clock is used for PMC test purposes only. It must be left
as a no connect (NC) during the normal mode of operation.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
22
PMC [ PMC-SIERRA, INC ]
