PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
11.1 Top Level Configuration Registers
Register 00H: STP Incoming Configuration
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
IPE
0
0
0
0
0
0
0
0
LOPAIS
INCIPL
INCIC1J1
IOP
ITMFH4
ITMFEN
ICONCAT
This register configures the STP functionality in the TUPP+622 that are related to
the incoming data stream.
ICONCAT:
When set high, the ICONCAT bit configures the incoming section of the STP
to operate in AU4 mode. When the ICONCAT bit is set low, the incoming
section operates in AU3 mode (or equivalently, STS-1 mode).
ITMFEN:
When set high, the ITMFEN bit enables the TUPP+622 to use the
corresponding ITMF input signal to locate tributary multiframe boundaries.
The H4 bytes in the corresponding incoming data stream are ignored. When
ITMFEN is set low, the H4 bytes are used to locate the boundaries, and the
ITMF signal is ignored.
ITMFH4:
The ITMFH4 bit selects the location of the ITMF in the tributary multiframe.
When ITMFH4 is set high, ITMF is pulsed high to mark the H4 byte which
indicates that the next AU3/4 or STS-1 frame is the first frame of the tributary
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
118
PMC [ PMC-SIERRA, INC ]
