tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 282

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

155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
12 28-Channel Framer Registers
Table 386. FRM_PMLR5, Performance Monitor Link Register 5 (COR)
* See
282
Address*
0x8LP84
Table 381
for values of L and P .
15:14
Bit
13
12
11
10
9
8
7
6
FRM_CREBIT Continuous Received E Bits. A 1 indicates the detection of a five
FRM_ECRCE Excessive CRC Errors. A 1 indicates the receive framer detected
FRM_REBIT
FRM_CRCE
FRM_LTFA
FRM_FBE
FRM_NFA
FRM_LFV
Name
—
Reserved. Must write to 0.
Line Format Violation. A 1 indicates the receive framer detected
a bipolar line coding or excessive zeros violation. The perfor-
mance monitor counts all pulses on the BPV signal from the frame
aligner block. This signal is set when the error occurs and is
cleared when it is read, if there is not another error during the
read. (G.703 Annex A and O.161 section 2.)
Frame-Bit Errored. A 1 indicates the receive framer detected a
frame bit or frame alignment pattern error. For SF formats, either
F
is set when the error occurs and is cleared when it is read, if there
is not another error during the read. In DDS, F
counted as FBEs. The PMON is, however, configurable as to
whether TS24 is also counted as a FBE. In CEPT, FAS words can
only generate one FBE.
CRC Errored. A 1 indicates the receive framer detected a CRC
error. It is the occurrence of a received CRC code that is not iden-
tical to the locally calculated code. This signal is set when the error
occurs and is cleared when it is read, if there is not another error
during the read. This signal is only valid in ESF(G.704 section A.1)
and CEPT CRC-4 (G.704 section A.3) modes.
an excessive CRC error condition. This signal is set when the
error occurs and is cleared when it is read, if there is not another
error during the read. This signal is only valid in ESF and CEPT
CRC-4 modes. The CRC error count is provisionable. In ESF, an
excessive CRC error is defined as 320 CRC errors in one sec-
ond. In CEPT, an excessive CRC error is defined as 915 CRC
errors in one second.
Received E Bit = 0. A 1 indicates the receive framer detected an
E bit = 0 in the CEPT CRC-4 modes. This signal is set when the
error occurs and is cleared when it is read if there is not another
error during the read. This signal is only valid in CEPT CRC-4
modes.
second interval containing 991 E bit = 0 events in each second.
The E-bit error count is provisionable. The defaults of 991 are
shown.
Loss of Transmit Frame Alignment. DS1: Always 0.
CEPT FRM_LTFA: A 1 indicates that the CEPT biframe alignment
pattern (alternating 0, 1 in bit 2 of time slot 0) received from the
system is in error. This alignment pattern is required when trans-
mitting the Si or Sa bits transparently. Detection of this condition
may optionally be disabled.
New Frame Alignment. A 1 indicates the receive framer has
reframed.
T
, or F
T
(continued)
and F
S
bits are used and are programmable. This signal
Function
T
and F
S
are always
Agere Systems Inc.
May 2001
Default
Reset
0
0
0
0
0
0
0
0
0