PRELIMINARY
PM4318 OCTLIU
DATASHEET
PMC- 2001578
ISSUE 3
OCTAL E1/T1/J1 LINE INTERFACE DEVICE
Register 07DH, 0FDH, 17DH, 1FDH, 27DH, 2FDH, 37DH, 3FDH:
RLPS Equalizer Voltage Thresholds #2
Bit
Type
Function
Default
7
6
5
4
3
2
1
0
R/W
R/W
CUTOFF[1]
CUTOFF[0]
Unused
0
0
X
X
X
0
1
1
Unused
Unused
R/W
R/W
R/W
VREF[8]
VREF[7]
VREF[6]
CUTOFF[1:0]:
The CUTOFF[1:0] bits control cutoff frequencies of the bandlimiter and equaliser within the
RLPS. For T1 mode, the CUTOFF[1:0] bits must be programmed to 3H (‘b11). For E1 mode,
the CUTOFF[1:0] bits must be programmed to 0H (‘b00).
VREF[8:6]:
The VREF[8:6] bits set the voltage thresholds of amplitude comparators within the RLPS. For
T1 mode, the VREF[8:6] bits must be programmed to 3H (‘b011). For E1 mode, the
VREF[8:6] bits must be programmed to 3H (‘b011).
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
168
PMC [ PMC-SIERRA, INC ]
