PXB4219 Datasheet, PDF (128/290 Pages) Infineon Technologies AG – IWE8 Interworking Element for 8 E1/T1 Lines

31
23
15
7
Not used
PXB4219 / PXB4220 / PXB4221
Memory Structure
Not used
Not used
Not used
x43_
scram-
bling
channel_mode[1:0]
24
16
8
0
ref_slot
=1
x43_scram
bling
channel_
mode
ref_slot
ATM cell payload scrambling enable
0 = Disabled
1 = Enabled
Channel mode
00 = Inactive mode
01 = Active mode (normal mode)
10 = Standby mode
11 = Active mode (normal mode)
Reference slot indicator
1 = This slot is a reference slot
Note: RAM slot 1 has always to be configured always as reference slot.
Note: To allow IWE8 internal initialization, all channels must remain in inactive mode for
at least 250 µs after activation of the port (i.e. setting pcfN[p_tx_act] = 1). During
this time the device connected to the Framer Transmit Interface has to be in
normal operation.
6.1.2.2 RAM2: ATM Transmit Continuation Slot
Read/write Address 00400_H to 005FF_H
Reset value: Not applicable. RAM must be reset and initialized via SW.
Data Sheet
128
2002-05-06