PMC-Sierra, Inc.
PM5356
S/UNI-622-MAX
DATASHEET
S/UNI-622-MAX
PMC-1980589
ISSUE 5
SATURN USER NETWORK INTERFACE (622-MAX)
inverted + previous NDF_enable, inc_ind or dec_ind more than 3
frames ago
dec_ind
disabled NDF + ss + majority of D bits inverted + no majority of I bits
inverted + previous NDF_enable, inc_ind or dec_ind more than 3
frames ago
inv_point
not any of above (i.e., not norm_point, and not NDF_enable, and not
AIS_ind, and not inc_ind and not dec_ind)
new_point
disabled_NDF + ss + offset value in range of 0 to 782 but not equal to
active offset
inc_req
majority of I bits inverted + no majority of D bits inverted
majority of D bits inverted + no majority of I bits inverted
dec_req
Note 1.-
Note 2 -
Note 3 -
Note 4 -
active offset is defined as the accepted current phase of the SPE (VC) in the
NORM_state and is undefined in the other states.
enabled NDF is defined as the following bit patterns: 1001, 0001, 1101, 1011,
1000.
disabled NDF is defined as the following bit patterns: 0110, 1110, 0010, 0100,
0111.
the remaining six NDF codes (0000, 0011, 0101, 1010, 1100, 1111) result in an
inv_point indication.
Note 5 -
Note 6 -
Note 7 -
ss bits are unspecified in SONET and has bit pattern 10 in SDH
the use of ss bits in definition of indications may be optionally disabled.
the requirement for previous NDF_enable, inc_ind or dec_ind be more than 3
frames ago may be optionally disabled.
Note 8 -
Note 9 -
new_point is also an inv_point.
LOP is not declared if all the following conditions exist:
• the received pointer is out of range (>782),
• the received pointer is static,
• the received pointer can be interpreted, according
to majority voting on the I and D bits, as a
positive or negative justification indication,
• after making the requested justification, the received
pointer continues to be interpretable as a
pointer justification.
When the received pointer returns to an in-range value, the S/UNI-622-MAX will
interpret it correctly.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
47
PMC [ PMC-SIERRA, INC ]
