PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
ITV5[4]
Type
Pin
No.
Function
Input
AB6 The incoming tributary V5 byte #4 (ITV5[4])
signal marks the tributary V5 bytes of the STM-1
#4 stream when pointer interpreter bypass is
enabled (PIBYP bit set high). When pointer
interpreter bypass is disabled (PIBYP bit set
low), ITV5[4] is ignored. Also, ITV5[4] is ignored
when IPL[4] is low.
In incoming STM-1 (STS-3) interface mode
(IHSMODEB set high), ITV5[4] is set high to
mark each tributary V5 byte on the ID[31:24]
bus. When the incoming tributary is a TU3,
ITV5[4] marks the J1 byte of the TU3. ITV5[4] is
sampled on the rising edge of SCLK.
In incoming STM-4 (STS-12) interface mode
(IHSMODEB set low), ITV5[4] is unused and
must be strapped low.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
35
PMC [ PMC-SIERRA, INC ]
