
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
501
17.10.4
Add Transmit PAIS Block
The Add Transmit PAIS block processes the external Add bus alarms (TPAIS port) and the
internal alarms declared by the either the 8B/10B decoder or the add pointer interpreter
(TLOPTR, TPAISPTR). A consequent action is a transmitted path AIS insertion (TPAISINS).
The first step to the generation of the consequent action indications is to monitor the
TALLPAISC, TPAIS, TPAISC, TPLOP, and TPLOPC signals generated by the Add bus pointer
interpreter and to generate TPAISPTR and TPLOPTR defects. With the TPAISPTR and
TPLOPTR defects and the external TPAIS information, the Add Transmit PAIS Block can
prepare the transmit path AIS insertion (TPAISINS).
In Register 00E7H: SARC Transmit Path Configuration, the TPAISPTRCFG[1:0] bit is the
register configuration bit that defines the TPAISPTR defect. Only one TPAISPTRCFG[1:0] bit
exists for 48 transmit paths. A transmit path alarm indication signal defect is declared when the
selected Equation 7 is true. A transmit path alarm indication signal defect is removed when the
selected Equation 7 is false. No interrupt is generated with this defect.
Equation 7:
TPAISPTRCFG[1:0]
TPAISPTR
“00”
TPAIS
“01”
TPAIS or TPAISC
“10”
TPAIS and TALLPAISC
Others
‘0’
Also in Register 00E7H: SARC Transmit Path Configuration, the TPLOPTRCFG[1:0] bit is the
register configuration bit that defines the TPLOPTR_NOEND defect. Only one
TPLOPPTRCFG[1:0] bit exists for 48 transmit paths. The TPLOPTR defect can be optionally
terminated by a TPAISPTR defect.
The TPLOPTREND bit is the register configuration bit that defines if TPLOPTR is terminated
by TPAISPTR or not. Only one TPLOPTREND bit exists for 48 transmit paths. When the
TPLOPTR is terminated by TPAISPTR and this TPAISPTR is true the TPLOPTR is forced to
false, in any others case it takes TPLOPTR_NOEND value. A transmit path loss of pointer
defect is declared when the selected Equation 9 is true. A transmit path loss of pointer defect is
removed when the selected Equation 9 is false. No interrupt is generated with this defect.
Equation 8:
TPLOPTRCFG[1:0]
TPLOPTR_NOEND
“00”
TPLOP
“01”
TPLOP or TPLOPC
“10”
TPLOP or TPLOPC or TPAIS or TPAISC
Others
‘0’