tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 298

• 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 422. FRM_ARLR2, Arbiter Link Register 2 (R/W) (continued)
* See
298
Address*
0x8LPF1
Table 417
for values of L and P .
10:8
Bit
5:4
7
6
FRM_RAIL3_DEC[1:0] Third Rail Option.
FRM_LF_CRT[2:0]
FRM_AUTO_AIS
Name
—
(continued)
Loss of Frame Criteria.
DS1 Mode:
000 = 2 errored framing bits out of 4 F
001 = 2 errored framing bits out of 5 F
010 = 2 errored framing bits out of 6 F
011 = 3 errored framing bits out of 12 F
24 FAS bits (DDS only).
100 = 2 errored framing bits out of 4 F
101 = 2 errored framing bits out of 5 F
110 = 2 errored framing bits out of 6 F
111 = 4 errored framing bits out of 12 F
24 FAS bits (DDS only).
CEPT Mode:
000 = 3 consecutive errored FAS patterns.
x01 = 3 consecutive errored FAS patterns or 3 consecu-
tive errored NOTFAS bits (bit 2).
x10 = 3 consecutive errored frames (FAS and NOTFAS).
Others reserved.
Reserved. Must write to 0.
Auto AIS.
0 = Auto AIS is disabled.
1 = Auto AIS is enabled.
When auto AIS is enabled, the receive arbiter data is
forced to 1 when out of frame.
00 = Third input signal to the frame aligner is ignored.
01 = Third input is bipolar violations (in the CMI mode,
CRVs are also included on the RBPV input, but not
passed through the frame aligner).
10 = Third rail is frame sync used to indicate time slot
alignment. The multiframe alignment is determined by the
frame sync.
11 = Third rail is frame sync used to indicate framing bit
position. Multiframe alignment is searched for expedited
by the frame sync.
Function
T
T
T
T
T
T
T
T
and F
and F
and F
bits only.
bits only.
bits only.
, F
, Fs, and channel
S
, and channel
S
S
S
bits.
bits.
bits.
Agere Systems Inc.
May 2001
Default
Reset
0
0
0
0