PXB4220E Infineon Technologies AG, PXB4220E Datasheet - Page 140
PXB4220E
Manufacturer Part Number
PXB4220E
Description
Interworking Element for 8 E1/T1 Lines
Manufacturer
Infineon Technologies AG
Datasheet
1.PXB4220E.pdf
(290 pages)
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3)
The format of the counter entries is as follows:
int_gen
count_value counter value
6.2.2
Read/write Address 22000
Reset value: Not applicable. RAM must be reset and initialized via SW
Memory size: 4K
Data Sheet
int_gen
If
Reference Slot.auto_reinit_uf = 1B), the re-initialization of the Reassembly Buffer will terminate an underflow
status as soon as start of underflow is detected. Thus, the underflow status for the device is no longer valid
although the underflow condition still exists. No starvation cells due to underflow will be inserted and counter
13 will not increment Therefore, it is recommended to disable “auto-re-initialization on underflow”
(RAM3.AAL Transmit Reference Slot.auto_reinit_uf = 0B) and perform the re-initialization of the reassembly
buffer by software.
31
23
15
7
the
Statistics Counter thresholds
“auto-re-initialization
interrupt queue entry generated
Indicates if an interrupt queue entry was generated for this counter. Only
one interrupt queue entry per counter can be generated.
0 =
1 =
4000_0000
increment beyond this value
32 bits: 8 ports x 32 channels x 16 counter thresholds
False
True
H
indicates the maximum value. The counter will not
H
to 23FFF
on
count_value[23:16]
count_value[15:8]
count_value[7:0]
underflow”
H
count_value[30:24]
140
PXB 4219E, PXB 4220E, PXB 4221E
feature
is
enabled
Memory Structure
(RAM3.AAL Transmit
IWE8, V3.4
2003-01-20
24
16
8
0
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