PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
the OFAE bit the OFAI remains valid and may be polled to detect change of frame alignment
events.
LCVI:
The line code violation event interrupt status bit (LCVI) reports and acknowledges line code
violation interrupts. Interrupts are generated when the character alignment block detects a
line code violation in the incoming data stream. LCVI is set high when a line code violation
event is detected and is cleared immediately following a read of this register, which also
acknowledges and clears the interrupt. When the interrupt is masked by the LCVE bit the
LCVI remains valid and may be polled to detect change of frame alignment events.
FUOI
The FIFO underrun/overrun event interrupt status bit (FUOI) reports and acknowledges the
FIFO underrun/overrun interrupts. Interrupts are generated when the character alignment
block detects a that the read and write pointers are within one of each other. FUOI is set high
when this event is detected and is cleared immediately following a read of this register, which
also acknowledges and clears the interrupt. When the interrupt is masked by the FUOE bit
the FUOI remains valid and may be polled to detect underrun/overrun events.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
409
PMC [ PMC-SIERRA, INC ]
