PXB4340E Datasheet, PDF (66/185 Pages) Infineon Technologies AG – ICs for Communications

Programming of the two cell filters is identical:
3;%  (
5HJLVWHU 'HVFULSWLRQ

 
VPI/LCI
VCI
 
PT C LCI HK
UDF1


1st Payload
1
MR10
1
CTR10
MR11
CTR11
MR12
CTR12
2
2

MR20
CTR20
MR21
CTR21
 
MR22
CTR22
 

Only the 5 MSBs of the UDF1 octet are compared. The 3 LSBs are treated like masked and
match always. In case of the proprietary cell format UDF1(7:3) contains the two MSBs of the LCI
and the housekeeping bits. See )LJXUHV  and  for cell formats.
CTRxy, MRxy
Bit 10 of CTRx2
Bit 9,8 of CTRx2
Meaning of the indices x, y:
x
Selects filter 1 or filter 2.
y
Selects one of the three registers for each filter.
Unused
Define the action to be done in case of match:
00
Ignore cell. Use this selection to disable the function.
01
Discard cell.
10
Drop cell; the cell is extracted from the cell stream and
stored in the receive buffer.
11
Monitor cell; the cell is copied into the receive buffer.
Data Sheet
3-66
04.2000