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
POHFP[4]
POHFP[5]
POHFP[6]
Output B20
C20
The tributary path overhead frame pulse
(POHFP[6:4]) signals may be used to locate the
individual path overhead bits of each tributary for
the corresponding STS-1 (TUG3) in the
C23
incoming STM-1 #2 stream. Each POHFP signal
is set high to mark bit 1 (the most significant bit)
of the V5 byte of the first tributary. POHFP[4],
POHFP[5] and POHFP[6] identify frame
boundaries of the tributary path overhead bytes
from STS-1 (AU3) #1, #2 and #3, respectively. In
AU4 mode, POHFP[4], POHFP[5] and
POHFP[6] identify frame boundaries of TUG3
#1, #2 and #3, respectively. Each POHFP signal
is updated on the falling edge of POHCK.
POHFP[7]
POHFP[8]
POHFP[9]
Output U21 The tributary path overhead frame pulse
(POHFP[9:7]) signals may be used to locate the
U20
Y23
individual path overhead bits of each tributary for
the corresponding STS-1 (TUG3) in the
incoming STM-1 #3 stream. Each POHFP signal
is set high to mark bit 1 (the most significant bit)
of the V5 byte of the first tributary. POHFP[7],
POHFP[8] and POHFP[9] identify frame
boundaries of the tributary path overhead bytes
from STS-1 (AU3) #1, #2 and #3, respectively. In
AU4 mode, POHFP[7], POHFP[8] and
POHFP[9] identify frame boundaries of TUG3
#1, #2 and #3, respectively. Each POHFP signal
is updated on the falling edge of POHCK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
76
PMC [ PMC-SIERRA, INC ]
