PM5361-RI PMC-Sierra, Inc., PM5361-RI Datasheet - Page 19
PM5361-RI
Manufacturer Part Number
PM5361-RI
Description
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5361-RI.pdf
(108 pages)
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DATA SHEET
PMC-920526
8
PIN DESCRIPTION
Pin Name
SCLK
VCLK
IC1J1
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
Type
Input
Input
ISSUE 8
Pin
No.
153
44
Function
The system clock (SCLK) provides timing for
TUPP internal operation. SCLK is a 19.44 MHz,
nominally 50% duty cycle clock.
The test vector clock (VCLK) signal is used
during TUPP production testing to verify internal
functionality.
The input C1/J1 frame pulse (IC1J1) identifies
the transport envelope and synchronous payload
envelope frame boundaries on the DIN[7:0] bus.
IC1J1 is set high while ISPE is low to mark the
first C1 byte of the transport envelope frame on
the DIN[7:0] bus. IC1J1 is set high while ISPE is
high to mark each of the J1 bytes of the
synchronous payload envelope(s) on the
DIN[7:0] bus. IC1J1 must be present at every
occurrence of the first C1 and all J1 bytes. The
TUPP will ignore a pulse on IC1J1 at the byte
position of the V1 byte of the first tributary of
each TUG3 or VC3. IC1J1 is sampled on the
rising edge of SCLK.
TRIBUTARY UNIT PAYLOAD PROCESSOR
11
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