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S/UNI-QUAD
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
39
Figure 3: Pointer Interpretation State Diagram
inc_ind /
dec_ind
3 x eq_new_point
NDF_enable
3 x AIS_ind
8 x inv_point
8 x
inv_point
3 x
eq_new_point
8 x
NDF_enable
3 x
eq_new_point
3 x
AIS_ind
NDF_enable
NORM
LOP
AIS
The following table defines the events (indications) shown in the state diagram.
Table 1: Pointer Interpreter Event (Indications) Description
Event (Indication) Description
norm_point disabled NDF + ss + offset value equal to active offset
NDF_enable enabled NDF + ss + offset value in range of 0 to 782 or
enabled NDF + ss, if NDFPOR bit is set (Note that the
current pointer is not updated by an enabled NDF if the
pointer is out of range).
AIS_ind H1 = 'hFF, H2 = 'hFF
inc_ind disabled NDF + ss + majority of I bits inverted + no
majority of D bits 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