Preliminary Data Sheet
May 2001
TMXF28155/51 Super Mapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
161
Agere Systems Inc.
10 VT/TU Mapper Registers
(continued)
Table 182. VT_GCTL3, VT Global Control Register 3 (R/W)
Table 183. VT_GCTL4, VT Global Control Register 4 (R/W)
Address
Bit
Name
Function
Reset
Default
0x00
0x6
0x200CC
15:8
7:4
—
Reserved.
VT_LOPS_NTIME[3:0]
VT/TU Loss of Phase Sync NTIME Detection Control.
This nibble is programmed to provision the number of con-
secutive errored phase indications required to transition
into the VT_LOPS[1
—
28] (
Table 177
) state.
Only valid in
byte synchronous mode.
Note:
The valid range of values is 0x1
—
0xF. A value of
0x0 will be mapped to 0x1.
VT_H4_NTIME[3:0]
H4 Multiframe Indication NTIME Detection Control.
This nibble is programmed to provision the number of con-
secutive errored multiframe indications required to transi-
tion into the VT_H4LOMF (
Table 176
) state.
Note:
The valid range of values is 0x1
—
0xF. A value of
0x0 will be mapped to 0x1.
3:0
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.
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 177
) state.
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.
Note:
The valid range of values is 0x1
—
0xF. A value of
0x0 will be mapped to 0x1.
11:8
VT_J2_NTIME[3:0]
0x3
7:4
VT_INV_NTIME[3:0]
0x8
3:0
VT_NDF_NTIME[3:0]
0x8