PM5356 Datasheet, PDF (33/307 Pages) PMC-Sierra, Inc – 622 Mbit/s ATM Physical Layer Device

RELEASED
S/UNI-622-MAX
DATASHEET
PMC-1980589
ISSUE 6
PMC-Sierra, Inc.
PM5356
S/UNI-622-MAX
SATURN USER NETWORK INTERFACE (622-MAX)
Pin Name
TFPI
APS[0]
APS[1]
APS[2]
APS[3]
APS[4]
Type
Input
I/O
Pin
No.
A21
A19
C18
B18
D17
C17
Function
The active high framing position (TFPI) signal is an 8
kHz timing marker for the transmitter. TFPI is used to
align the SONET/SDH transport frame generated by
the S/UNI-622-MAX device to a system reference.
TFPI should be brought high for a single TCLK period
every 9720 TCLK cycles or a multiple thereof. TFPI
must be tied low if such synchronization is not
required.
TFPI is sampled on the rising edge of TCLK.
The APS Port bus (APS[4:0]) is a bi-directional
control bus that can be used to implement a 1+1 APS
system. When the APSPOE register bit is set low, the
APS[4:0] bus is an input. Data on this bus is used by
TPOP to generate the path RDI and path FEBE.
When the APSOE register bit is set high, the APS[4:0]
bus is an output with data generated by RPOP.
APS[0]
APS[1]
APS[2]
APS[3]
APS[4]
FEBE Clock (576 kHz)
FEBE Data
RDI[0] (G1 bit 5)
RDI[1] (G1 bit 6)
RDI[2] (G1 bit 7)
See the Operation section for more discussion of 1+1
APS.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 23