PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
Type
Pin
No.
Function
POH[4]
POH[5]
POH[6]
Output A21
D21
The tributary path overhead (POH[6:4]) signals
contain the tributary path overhead bytes (V5,
J2, Z6 and Z7) extracted from the incoming
STM-1 #2 stream. POH[4], POH[5] and POH[6]
contain the tributary path overhead bytes from
STS-1 (AU3) #1, #2 and #3, respectively. In AU4
mode, POH[4], POH[5] and POH[6] contain the
tributary path overhead bytes from TUG3 #1, #2
and #3, respectively. All four tributary overhead
bytes of each tributary is shifted out once per
payload frame. The corresponding POHEN
signal is set high to identify overhead bytes that
are presented for the first time. Each POH signal
is updated on the falling edge of POHCK.
D22
POH[7]
POH[8]
POH[9]
Output V22
V21
The tributary path overhead (POH[9:7]) signals
contain the tributary path overhead bytes (V5,
J2, Z6 and Z7) extracted from the incoming
STM-1 #3 stream. POH[7], POH[8] and POH[9]
contain the tributary path overhead bytes from
STS-1 (AU3) #1, #2 and #3, respectively. In AU4
mode, POH[7], POH[8] and POH[9] contain the
tributary path overhead bytes from TUG3 #1, #2
and #3, respectively. All four tributary overhead
bytes of each tributary is shifted out once per
payload frame. The corresponding POHEN
signal is set high to identify overhead bytes that
are presented for the first time. Each POH signal
is updated on the falling edge of POHCK.
W21
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
74
PMC [ PMC-SIERRA, INC ]
