PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
IC1J1[1]
Type
Pin
Function
No.
Input
R1
The input C1/J1 frame pulse #1 (IC1J1[1])
identifies the transport envelope and
synchronous payload envelope frame
boundaries on the incoming STM-4 or STM-1 #1
stream (ID[7:0]).
In incoming STM-1 (STS-3) interface mode
(IHSMODEB set high), IC1J1[1] is set high while
IPL[1] is low to mark the first C1 byte of the
STM-1 #1 transport envelope frame on the
ID[7:0] bus. The C1 byte position must be
coincident to the C1 byte positions of the STM-1
streams on ID[15:8], ID[23:16] and ID[31:24].
IC1J1[1] is set high while IPL[1] is high to mark
each J1 byte of the synchronous payload
envelope(s) on the ID[7:0] bus. IC1J1[1] must be
present at every occurrence of the first C1 and
all J1 bytes. The TUPP+622 will ignore a pulse
on IC1J1[1] at the byte position of the V1 byte of
the first tributary of each VC3 or the top byte of
the first fixed stuff column of each TUG3.
IC1J1[1] is sampled on the rising edge of SCLK.
In incoming STM-4 (STS-12) interface mode
(IHSMODEB set low), IC1J1[1] is set high while
IPL[1] is low to mark the first C1 byte of the
STM-4 transport envelope frame on the ID[7:0]
bus. IC1J1[1] is set high while IPL[1] is high to
mark each J1 byte of the synchronous payload
envelopes on the ID[7:0] bus. IC1J1[1] must be
present at every occurrence of the first C1 and
all J1 bytes. The TUPP+622 will ignore a pulse
on IC1J1[1] at the byte position of the V1 byte of
the first tributary of each VC3 or the top byte of
the first fixed stuff column of each TUG3.
IC1J1[1] is sampled on the rising edge of
HSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
21
PMC [ PMC-SIERRA, INC ]
