PM4341AT1XC
DATA SHEET
PMC-900602
ISSUE 7
T1 FRAMER/TRANSCEIVER
Register 57H: XBOC Code
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
Unused
BC[5]
BC[4]
BC[3]
BC[2]
BC[1]
BC[0]
X
X
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
This register enables the XBOC to generate a bit oriented code and selects the
6-bit code to be transmitted.
When this register is written with any 6-bit code other than 111111, that code will
be transmitted repeatedly in the ESF Facility Data Link with the format
111111110[BC0][BC1][BC2][BC3][BC4][BC5]0, overwriting any HDLC packets
currently being transmitted. When the register is written with 111111, the XBOC
is disabled.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
185
PMC [ PMC-SIERRA, INC ]
