PXB4219E Datasheet, PDF (126/290 Pages) Infineon Technologies AG – Interworking Element for 8 E1/T1 Lines

IWE8, V3.4
PXB 4219E, PXB 4220E, PXB 4221E
Memory Structure
6.1.1.4 RAM1: AAL Receive Continuation Slot
Read/write Address 00200_H to 003FF_H
Reset value: Not applicable. RAM must be reset and initialized via SW.
31
24
next_slot_nr[4:0]
Not used
23
16
Not used
sig_cond_nibble[3:0]
fourth_
slot_nr[4]
15
8
fourth_slot_nr[3:0]
third_slot_nr[4:1]
7
0
third_slot
_nr[0]
ref_slot_nr[4:0]
cont_slot ref_slot
=1
=0
next_slot_nr Next slot number
Number of the next slot of this channel. When no continuation slots exist,
the entry “next_slot_nr” should refer to the reference slot.
sig_cond_
nibble
4 bits for signalling conditioning
It is possible to have different signalling conditioning nibbles for all slots
of a channel except for the first two slots of a channel. The first slot in a
channel will always use the same nibbles as the first continuation slot.
fourth_slot_ Fourth slot number
nr
Number of the fourth slot of this channel
X = If [band_width] < 3
third_slot_ Third slot number
nr
Number of the third slot of this channel
X = If [band_width] < 2
ref_slot_nr Reference slot number
Number of the reference slot of this channel
cont_slot Continuation slot indicator
1 = This slot is a continuation slot
ref_slot
Reference slot indicator
0 = This slot is not a reference slot
Data Sheet
126
2003-01-20