PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
TPOH[3]
Type
Pin
No.
Function
Output T21
The outgoing tributary path overhead byte #3
(TPOH[3]) signal marks the tributary path
overhead bytes in the outgoing STM-1 #3
stream. For streams in TU3 mode, the J1, B3,
C2, G1, F2, H4, Z3, Z4 and Z5 bytes are
marked. For streams out of TU3 mode, V5, J2,
Z6 an Z7 bytes are marked.
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), TPOH[3] is set high to
mark each tributary path overhead byte on the
OD[23:16] bus. TPOH[3] is updated on the rising
edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), TPOH[3] is invalid.
AC17
TPOH[4]
Output
The outgoing tributary path overhead byte #4
(TPOH[4]) signal marks the tributary path
overhead bytes in the outgoing STM-1 #4
stream. For streams in TU3 mode, the J1, B3,
C2, G1, F2, H4, Z3, Z4 and Z5 bytes are
marked. For streams out of TU3 mode, V5, J2,
Z6 an Z7 bytes are marked.
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), TPOH[4] is set high to
mark each tributary path overhead byte on the
OD[31:24] bus. TPOH[4] is updated on the rising
edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), TPOH[4] is invalid.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
66
PMC [ PMC-SIERRA, INC ]
