PM5342 Datasheet, PDF (270/558 Pages) PMC-Sierra, Inc – SONET/SDH Payload Extractor/Aligner

DATA SHEET
PMC-970133
ISSUE 4
PM5342 SPECTRA-155
SONET/SDH PAYLOAD EXTRACTOR/ALIGNER
Register 91H, 99H, A1H: D3MD Interrupt Status
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Type
R
R
Function
Unused
Unused
Unused
Unused
Unused
Unused
OFLI
UFLI
Default
X
X
X
X
X
X
0
0
The OFLI and UFLI bits and the interrupt are cleared when this register is read
by the microprocessor interface.
UFLI
When set high, this bit indicates that an underflow condition has occurred in
the D3MD elastic store. This error resets the elastic store’s read and write
addresses to 180° apart.
OFLI
When set high, this bit indicates that an overflow condition has occurred in
the D3MD elastic store. This error resets the elastic store’s read and write
addresses to 180° apart.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 248