TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
164
Agere Systems Inc.
10 VT/TU Mapper Registers
(continued)
Table 193. VT_GCTL1, VT Global Control Register 1 (R/W)
Table 194. VT_GCTL2, VT Global Control Register 2 (R/W)
Address
Bit
Name
Function
Reset
Default
0
0x7F
0x200CA
15
14:8
RSVD
Reserved.
VT_RX_GRP_TYPE[6:0]
Receive Group Type.
VT/TU group type selection.
Logic 1 selects VT1.5/TU-11 and logic 0 selects
VT2/TU-12 group type. Group 1 is the LSB.
RSVD
Reserved.
VT_TX_GRP_TYPE[6:0]
Transmit Group Type.
VT/TU group type selection.
Logic 1 selects VT1.5/TU-11 and logic 0 selects
VT2/TU-12 group type. Group 1 is the LSB.
7
0
6:0
0x7F
Address
Bit
Name
Function
Reset
Default
0x00
0x0
0x200CB
15:11
10
RSVD
Reserved.
VT/TU Loss of Phase Sync.
Contribution to AIS inhibit
control.
VT_J2TIM_ERDI_INH
J2 Trace Identifier Mismatch.
Contribution to ERDI
inhibit control.
VT_J2TIM_RDI_INH
J2 Trace Identifier Mismatch.
Contribution to RDI inhibit
control.
VT_J2TIM_AIS_INH
J2 Trace Identifier Mismatch.
Contribution to AIS inhibit
control.
VT_LOMF_AIS_INH
Loss of Multiframe.
Contribution to AIS inhibit control.
VT_PLM_AIS_INH
Payload Label Mismatch.
Contribution to AIS inhibit con-
trol.
VT_UNEQ_AIS_INH
UNEQ-V.
Contribution to AIS inhibit control.
RSVD
Reserved.
VT_UPSR
Unidirectional Path Switch Ring Mode Control.
Logic 1
activates the UPSR mode of operation. When the device
is programmed for UPSR mode, the transmitted REI-V,
RDI-V, RFI-V, and ERDI-V are based on the receive con-
ditions. Otherwise, the transmitted LOPOH is a copy of
the received overhead bytes.
VT_8ORMAJORITY
VT Pointer Interpreter Mode Control.
Logic 1 tells the
pointer interpreter to transition into the inc and dec states
based on 8 of the 10 I and D bits. Otherwise, the pointer
interpreter transitions into the inc and dec states based on
majority rule.
VT_BIT_BLOCK_CNT
Performance Monitor Count Mode Control.
Logic 1
activates BIP-2, TC-BIP-2, REI, and TC-CRC-7 counts
based on single bit errors. Otherwise, errors are counted
on a block basis.
VT_LOPS_AIS_INH
9
0x0
8
0x0
7
0x0
6
5
0x0
0x0
4
3
2
0x0
0
0x0
1
0x1
0
0x1