
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
168
Agere Systems Inc.
10 VT/TU Mapper Registers
(continued)
Table 202. VT_SIGDEG_CTL5, Signal Degrade Control Register 5 (R/W)
Table 203. VT_SIGDEG_CTL6, Signal Degrade Control Register 6 (R/W)
Table 204. VT_SIGDEG_CTL7, Signal Degrade Control Register 7 (R/W)
Table 205. VT_SIGFAIL_CTL1, Signal Fail Control Register 1 (R/W)
Table 206. VT_SIGFAIL_CTL2, Signal Fail Control Register 2 (R/W)
Table 207. VT_SIGFAIL_CTL3, Signal Fail Control Register 3 (R/W)
Address
Bit
Name
Function
Reset
Default
0x0000
0x200D3
15:0
VT_SDNSCLEAR[18:3]
Signal Degrade Ns Clear.
Number of frames in a moni-
toring block for SD.
Address
Bit
Name
Function
Reset
Default
0
0x00
0x200D4
15
14:7
RSVD
Reserved.
Signal Degrade M Clear.
Threshold of the number of bad
monitoring blocks in an observation interval. If the number
of bad blocks is below this threshold, then SD is cleared.
Signal Degrade L Clear.
Error threshold for determining
if a monitoring block is bad.
VT_SDNSCLEAR[2:0]
Signal Degrade Ns Clear.
Number of frames in a moni-
toring block for SD.
VT_SDMCLEAR[7:0]
6:3
VT_SDLCLEAR[3:0]
0x0
2:0
0x0
Address
Bit
Name
Function
Reset
Default
0x0000
0x200D5
15:0
VT_SDBCLEAR[15:0]
Signal Degrade B Clear.
Number of monitoring blocks.
Address
Bit
Name
Function
Reset
Default
0x0000
0x200D6
15:0
VT_SFNSSET[18:3]
Signal Fail Ns Set.
Number of frames in a monitoring block
for SF.
Address
Bit
Name
Function
Reset
Default
0
0x00
0x200D7
15
14:7
RSVD
Reserved.
Signal Fail M Set.
Threshold of the number of bad
monitoring blocks in an observation interval. If the number
of bad blocks is above this threshold, then SF is set.
Signal Fail L Set.
Error threshold for determining if a
monitoring block is bad.
Signal Fail Ns Set.
Number of frames in a monitoring
block for SF.
VT_SFMSET[7:0]
6:3
VT_SFLSET[3:0]
0x0
2:0
VT_SFNSSET[2:0]
0x0
Address
Bit
Name
Function
Reset
Default
0x0000
0x200D8
15:0
VT_SFBSET[15:0]
Signal Fail B Set.
Number of monitoring blocks.