tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 446

• 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
19 VT/TU Mapper Functional Description
Z7/K4 Overhead Byte Insertion. Three modes of programming the Z7/K4 APS bits are supported and controlled
by register bits VT_Z7_INS[1—28][1:0]
Table 565. Z7/K4 Overhead Byte Insertion Modes Per Channel
Note: When bits Z7_INS[1—28] [1:0] = 01, the APS bits in the Z7/K4 byte (bits 1:4) are based on
O-bit Insertion (Asynchronous/Bit Synchronous Modes Only). Three modes of programming the O bits,
defined in
Table 566. O-Bit Insertion Modes Per Channel
VT Mappings. Detailed mapping formats are shown in
I = information bit.
O = overhead bit.
R = fixed stuff bit.
P = phase bit.
S = signaling bit.
F = frame bit.
S1, S2 = stuff bits.
C1, C2 = stuff indication bits.
V5 = VT overhead byte.
J2 = VT path trace byte.
Z6/N2 = growth/tandem byte.
Z7/K4 = ERDI/APS byte.
V1, V2 = pointer bytes.
V3 = pointer action byte.
V4 = reserved.
446
VT_Z7_INS[1—28][1:0]
VT_O_INS[1—28][1:0]
(See
(See
written.
VT_APS_INS[1—28][3:0]
VT_ERDI_EN[1—28] = 0
VT_ERDI_INS[1—28][2:0]
Table 566
Table
Table
00
01
10
11
00
01
10
11
199.)
199.)
will be supported.
Default based on microprocessor bits SMPR_OH_DEFLT
Insert from bits VT_APS_INS[1—28][3:0]
VT_ERDI_INS[1—28][2:0]
LOPOH serial access channel insert.
Default based on microprocessor bits SMPR_OH_DEFLT.
Default based on microprocessor bits SMPR_OH_DEFLT.
Insert from bits VT_OBIT_INS[1—28][7:0]
LOPOH serial access channel insert.
Default based on microprocessor bits SMPR_OH_DEFLT.
(Table
(Table
(Table
198)and VT_TX_ERDI_EN[1—28] = 1
200) , while Z7/K4 bits 5:7 are either automatically inserted (when
(Table
200) (when VT_ERDI_EN[1—28] = 1). In all other modes, all bits are over-
199) as defined in
(Table
Table 567
(continued)
200).
Insertion Mode
Insertion Mode
Table
through
(Table
(Table
565.
Table
200) and
201).
(Table
573, where:
198) ) or inserted based on
(Table
67).
Agere Systems Inc.
May 2001