tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 283

• Manufacturer Part Number: tmxf28155
• Description: Tmxf28155 Super Mapper 155/51 Mbits/s Sonet/sdh X28/x21 Ds1/e1
• Manufacturer: ETC-unknow

Preliminary Data Sheet
May 2001
12 28-Channel Framer Registers
Table 386. FRM_PMLR5, Performance Monitor Link Register 5 (COR) (continued)
* See
Agere Systems Inc.
Address*
0x8LP84
0x8LP84
Table 381
for values of L and P .
Bit
5
4
3
2
1
0
FRM_LLBOFF Line Loopback Off Code Detect. A 1 indicates the receive framer
FRM_SA7LID Sa7 Link Identification. A 1 indicates that a sequence was found
FRM_LLBON Line Loopback On Code Detect. A 1 indicates the receive framer
FRM_BOMR
FRM_AUXP
FRM_LOS
Name
such that two out of three Sa7 bits are 0. (G.965 section 16.1.2.)
detected the DS1 line loopback enable code. The activation signal
consists of repetitions on the pattern 00001 with the framing bits
replacing the pattern bits. (T1.403 section 9.3.1.1.) Only applica-
ble in DS1 SF formats.
detected the DS1 line loopback disable code. The deactivation sig-
nal consists of repetitions on the pattern 001 with the framing bits
replacing the pattern bits. (T1.403 section 9.3.1.2.) Only applica-
ble in DS1 SF formats.
Auxiliary Pattern. DS1 IDLEID: Each of the 24 time slots in a
frame contain the DS1 idle signal, 00010111. (T1.231 section
6.4.8.)
CEPT AUXP: A 1 indicates the detection of a valid auxiliary pat-
tern (unframed 10 . . . pattern) in the CEPT mode. When in loss of
frame alignment state, an auxiliary pattern is detected when more
than 255 10 patterns are detected in a 512-bit interval. The alarm
is disabled when three or more non-10 patterns are detected in a
512-bit interval. The search for AUXP is synchronized to the first
alternating 10 pattern found. (ETS 300 233 section 8.2.2.2, O.151
section 2.4.)
Loss of Signal. A 1 indicates that the receive line decoder has
detected a loss of signal condition. This status is only valid in the
dual-rail mode of operation.
DS1: Loss of signal occurs when, for 100 contiguous pulse posi-
tions, there are no pulses of either the positive or negative polarity
at the line interface. The loss of signal defect is removed upon
detecting 13 pulses over 100 pulse positions following the receipt
of a pulse, and there is no 100 pulse position interval where there
were no pulses. (T1.231 section 6.1.2.1.1, G.775 section 4.3.)
CEPT: Loss of signal occurs when, for 100 consecutive pulse
positions, there are no pulses of either the positive or negative
polarity at the line interface. The loss of signal defect is removed
when there are pulses in a 100 consecutive pulse position period
(G.775 section 4.2.). Note that the defect is set and cleared at the
end defined sample period.
Bit Oriented Message Received. A 1 indicates a BOM has been
received in the ESF data link bits and FRM_RBOM[7:0]
(Table
0xxxxxx0 11111111 pattern (received right-to-left) repeated
10 consecutive times. The 0xxxxxx0 pattern is saved in the
FRM_RBOM[7:0] register
10th occurrence of the BOM message.
399) should be read. A BOM is defined in ANSI T1.403 as a
(continued)
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
(Table 399 on page287
Function
TMXF28155/51 Super Mapper
) upon the
Default
Reset
0
0
0
0
0
0
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