Data Sheet
June 2002
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
165
Agere Systems Inc.
10 VT/TU Mapper Registers
(continued)
Table 195. VT_GCTL3, VT Global Control Register 3 (R/W)
Table 196. VT_GCTL4, VT Global Control Register 4 (R/W)
Address
Bit
Name
Function
Reset
Default
0x00
0x6
0x200CC
15:8
7:4
RSVD
Reserved.
VT_LOPS_NTIME[3:0]
VT/TU Loss of Phase Sync NTIME Detection Control.
This nibble is programmed to provision the number of
consecutive errored phase indications required to transi-
tion into the VT_LOPS[1—28] (
Table 190 on page 163
)
state.
This is
only valid in byte-synchronous mode.
Note:
The valid range of values is 0x1—0xF. A value of
0x0 will be mapped to 0x1.
H4 Multiframe Indication NTIME Detection Control.
This nibble is programmed to provision the number of
consecutive errored multiframe indications required to
transition into the VT_H4LOMF (
Table 189 on page 162
)
state.
3:0
VT_H4_NTIME[3:0]
Note:
The valid range of values is 0x1—0xF. A value of
0x0 will be mapped to 0x1.
0x6
Address
Bit
Name
Function
Reset
Default
0x3
0x200CD
15:11
VT_Z6_NTIME[3:0]
Z6 Byte Monitor NTIME Detection Control.
This nibble
is programmed to provision the number of consecutive
consistent Z6 bytes required to accept a new value.
Note:
The valid range of values is 0x1—0xF. A value of
0x0 will be mapped to 0x1.
J2 Byte Monitor NTIME Detection Control.
This nibble
is programmed to provision the number of consecutive
consistent J2 sequences required for the J2 byte monitor
to transition in and out of J2TIM.
10:8
VT_J2_NTIME[3:0]
Note:
The valid range of values is 0x1—0xF. A value of
0x0 will be mapped to 0x1.
Pointer Interpreter Invalid Pointer NTIME Detection
Control.
This nibble is programmed to provision the
number of invalid pointers required for the pointer inter-
preter to go into the VT_LOP[1—28] (
Table 190 on
page 163
) state.
0x3
7:4
VT_INV_NTIME[3:0]
Note:
The valid range of values is 0x1—0xF. A value of
0x0 will be mapped to 0x1.
Pointer Interpreter NDF Pointer NTIME Detection
Control.
This nibble is programmed to provision the
number of consecutive NDF pointers required for the
pointer interpreter to go into the VT_LOP state.
0x8
3:0
VT_NDF_NTIME[3:0]
Note:
The valid range of values is 0x1—0xF. A value of
0x0 will be mapped to 0x1.
0x8