PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
IAIS[2]
Type
Pin
Function
No.
Input
A20
The incoming tributary alarm indication signal #2
(IAIS[2]) marks tributaries on the incoming STM-
STM-1 #2 stream that are in AIS state when
pointer interpreter bypass is enabled (PIBYP bit
set high). When pointer interpreter bypass is
disabled (PIBYP bit set low), IAIS[2] is ignored.
Also, IAIS[2] is ignored when IPL[2] is low.
In incoming STM-1 (STS-3) interface mode
(IHSMODEB set high), IAIS[2] is set high when
the associated tributary on the ID[15:8] is in AIS
state and is set low when the associated
tributary is operating normally. IAIS[2] is
sampled on the rising edge of SCLK.
In incoming STM-4 (STS-12) interface mode
(IHSMODEB set low), IAIS[2] is unused and
must be strapped low.
AA23
IAIS[3]
Input
The incoming tributary alarm indication signal #3
(IAIS[3]) marks tributaries on the incoming STM-
STM-1 #3 stream that are in AIS state when
pointer interpreter bypass is enabled (PIBYP bit
set high). When pointer interpreter bypass is
disabled (PIBYP bit set low), IAIS[3] is ignored.
Also, IAIS[3] is ignored when IPL[3] is low.
In incoming STM-1 (STS-3) interface mode
(IHSMODEB set high), IAIS[3] is set high when
the associated tributary on the ID[23:16] is in
AIS state and is set low when the associated
tributary is operating normally. IAIS[3] is
sampled on the rising edge of SCLK.
In incoming STM-4 (STS-12) interface mode
(IHSMODEB set low), IAIS[3] is unused and
must be strapped low.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
37
PMC [ PMC-SIERRA, INC ]
