PXF4336 Datasheet, PDF (53/425 Pages) Infineon Technologies AG – ABM Premium ATM Buf fer Manager

ABM-P
PXF 4336 V1.1
Functional Description
In the second case
VPI(11,0) ≥ 2^x – 1
;
with
ìx
í
î
x
=
=
16 – MNUM
0
for MNUM > 0 ü
for
MNUM = 0
ý
þ
the LCI is built by {VPI, PN} values only whereas the VPI range is given by
MNUM bits.
Note: Programming MNUM(3:0) = 0 is interpreted as decimal 16.
The following tables provide the possible LCI building patterns for all PNUM and MNUM
configurations. The resulting LCI is internally treated in the same way as in the LCI cell
header mapping modes, i.e. the two MSBs are checked against the quarter segment
configuration that allows for cascading of up to four ABM-P devices.
Note: VPI cell header field positions that are not mapped into the LCI are checked
against ‘0’. A mismatch is treated as ‘invalid LCI’ and the cell is discarded.
Note: When QS check is enabled (for cascaded ABM-Ps), the transparent VPCs are
handled by the ABM-P with QS=11b. See Register 127 "MODE2" on Page 377.
Data Sheet
53
2001-12-17