PRELIMINARY
PM4318 OCTLIU
DATASHEET
PMC- 2001578
ISSUE 3
OCTAL E1/T1/J1 LINE INTERFACE DEVICE
Register 072H, 0F2H, 172H, 1F2H, 272H, 2F2H, 372H, 3F2H: RLPS ALOS Detection Period
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DET_PER[7]
DET_PER[6]
DET_PER[5]
DET_PER[4]
DET_PER[3]
DET_PER[2]
DET_PER[1]
DET_PER[0]
0
0
0
0
0
0
0
1
DET_PER[7:0]:
This register specifies the time duration that the equalised cable loss has to remain above the
detection threshold in order for the ALOS to be issued. This duration is equal to DET_PER *
16 number of pulse intervals, the resulting range is from 16 to 4080 and thus compliant with
all the presently available E1/T1 ALOS detection standards/recommendations.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
156
PMC [ PMC-SIERRA, INC ]
