PM5371TUDX
DATA SHEET
PMC-920525
ISSUE 6
SONET/SDH TRIBUTARY UNIT CROSS CONNECT
Pin Name Type
Pin Function
No.
IFP
Output 82
The input frame pulse (IFP) marks the frame
boundaries on the DINT[8:0] and DINB[8:0] buses (or
SINL[8:0] and SINR[8:0] buses). IFP pulses high for a
single SCLK period to mark the first C1 byte of the
transport envelope frame of the buses in question. In
systolic array applications, IFP marks the frame
boundaries of the SINL[8:0] and SINR[8:0] buses (or
the DINT[8:0] and DINB[8:0] buses) after the
programmable systolic delay has been inserted. See
the Application Examples and Functional Timing
sections for more information. IFP is updated on the
rising edge of SCLK.
OFP
Output 83
The output frame pulse (OFP) marks the frame
boundaries on the SOUTT[8:0] and SOUTB[8:0]
buses. OFP pulses high for a single SCLK period to
mark the first C1 byte of the transport envelope frame.
OFP is updated on the rising edge of SCLK.
DINT[0]
DINT[1]
DINT[2]
DINT[3]
DINT[4]
DINT[5]
DINT[6]
DINT[7]
DINT[8]
Input
3
The top data input bus (DINT[8:0]) carries
SONET/SDH frame data in byte serial format. The
DINT[8] bit is a parity bit which is not passed through
the TUDX. The TUDX may be configured to check for
even or odd input bus parity and generate interrupts
when parity errors occur. The DINT[8:0] bus is
sampled on the rising edge of SCLK.
4
5
6
7
8
9
10
11
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
12
PMC [ PMC-SIERRA, INC ]
