PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
IPL[1]
Type
Pin
Function
No.
Input
P4
The active high incoming payload active #1
(IPL[1]) signal identifies the bytes within the
transport envelope frame on the incoming STM-
4 or STM-1 #1 stream that carry VC3 or VC4
virtual containers, or STS-1 synchronous
payload envelopes.
In incoming STM-1 (STS-3) interface mode
(IHSMODEB set high), IPL[1] must be brought
high to mark each payload byte on ID[7:0].
IPL[1] is sampled on the rising edge of SCLK.
In incoming STM-4 (STS-12) interface mode
(IHSMODEB set low), IPL[1] must be brought
high to mark each payload byte on ID[7:0].
IPL[1] is sampled on the rising edge of HSCLK.
IPL[2]
Input
D14 The active high incoming payload active #2
(IPL[2]) signal identifies the bytes within the
transport envelope frame on the incoming STM-
1 #2 stream that carry VC3 or VC4 virtual
containers, or STS-1 synchronous payload
envelopes.
In incoming STM-1 (STS-3) interface mode
(IHSMODEB set high), IPL[2] must be brought
high to mark each payload byte on ID[15:8].
IPL[2] is sampled on the rising edge of SCLK.
In incoming STM-4 (STS-12) interface mode
(IHSMODEB set low), IPL[2] is unused and must
be strapped low.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
25
PMC [ PMC-SIERRA, INC ]
