pxb4219 Infineon Technologies Corporation, pxb4219 Datasheet - Page 146
pxb4219
Manufacturer Part Number
pxb4219
Description
Iwe8 Interworking Element For 8 E1/t1 Lines
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXB4219.pdf
(290 pages)
- Current page: 146 of 290
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RMADR
MPADR
6.2.7.1
The SW does not need to access the ATM Receive Buffers.
6.2.7.2
The ATM header to be used for each channel has to be programmed at the address
given by:
RMADR
MPADR
All other locations should never be accessed as the data changes continuously.
The format of the ATM header entry in the cell insertion buffer is as follows:
6.2.8
Read/write Address 30000
Reset value: Not applicable. RAM must be reset and initialized via SW
Memory size 32K × 32 bits: 8 ports x 32 channels x 8 cells x 16 doublewords
Data Sheet
31
23
15
7
GFC[3:0] or VPI[11:8]
17 16 15 14 13 12 11 10 9
ATM Receive Buffer
Segmentation Buffer
17 16 15 14 13 12 11 10 9
Reassembly/ATM Transmit Buffers
1
1
15 14 13 12 11 10 9
15 14 13 12 11 10 9
0
0
VCI[3:0]
VPI[3:0]
1
1 port_nr[2:0]
port_nr
[2:0]
H
to 3FFFF
VCI[11:4]
ref_slot_nr[4:0]
H
channel_nr
146
[4:0]
8
8
7
8
7
8
PXB4219 / PXB4220 / PXB4221
6
7
6
7
PTI[2:0]
cell_nr
5
6
5
6
[1:0]
00
VCI[15:12]
VPI[7:4]
B
4
5
4
5
3
4
3
4
Memory Structure
double_word
0000
2
3
2
3
[3:0]
1
2
1
2
B
2002-05-06
CLP
0
1
0
1
24
16
8
0
0
0
0
0
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