VSC6134
Datasheet
3.13.7
Global MPU Register 6 - Global Configuration Control 1
Address:
0x006
Register Reset Value:
0x0000
Table 404. Global MPU Register 6 - Global Configuration Control 1
Reset
Value
Bit
Name
Access
Description
15
AFE_STUFF_DIS
R/W
Add path FEC encoder stuff byte control. Stuff bytes
are the 16 columns located in the OPU2 payload
area.
0
0: Stuff bytes are inserted in the SONET/SDH or
Transparent modes
1: Stuff bytes are not inserted in the SONET/SDH or
Transparent modes.
14
13
TRANSPARENT_ADD
DFD_STUFF_DIS
R/W
R/W
Add path transparent Mux configuration control:
0: TOH block is not bypassed. (This mode is for
SDH/SONET data)
1: Transparent mode. The TOH block is completely
bypassed.
0
0
Drop path FEC decoder stuff byte control. Stuff bytes
are the 16 columns located in the OPU2 payload
area.
0: Stuff bytes are discarded from received data in the
SONET/SDH or transparent modes.
1: Stuff bytes are not discarded from received data in
the SONET/SDH or transparent modes.
12
TRANSPARENT_DROP
ADD_FIFO_MODE[1:0]
R/W
R/W
Drop Path transparent Mux configuration control:
0: TOH block is not bypassed. This mode is for SDH/
SONET data.
1: Transparent mode. The TOH block is completely
bypassed.
0
11:10
Add Path FIFO and Mux configuration control
00: SONET/SDH/Tranparent to FEC (OTU) mode is
selected.
00
01: Line FEC or OTU repeater mode (drop decoder
to add encoder loopback) is selected.
10: Line FEC or OTU Repeater mode (drop decoder
to add encoder loopback) with SONET/SDH mid-
path regeneration is selected.
11: Client FEC to line FEC mode is selected.
9:8
FECDEC_MODE[1:0]
R/W
Drop FEC decoder block configuration:
00: Normal mode where data is decoded, corrected,
and monitored for errors.
00
01: Data is decoded and monitored for correctable
errors, but errors are not corrected.
10: FEC decoder is completely bypassed (for
SONET/SDH pass through applications).
11: Reserved.
7
Reserved
RO
0
368 of 438
VMDS-10185 Revision 4.0
July 2006
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
