PXB4221EV34NP Lantiq, PXB4221EV34NP Datasheet - Page 146
PXB4221EV34NP
Manufacturer Part Number
PXB4221EV34NP
Description
Manufacturer
Lantiq
Datasheet
1.PXB4221EV34NP.pdf
(290 pages)
Specifications of PXB4221EV34NP
Data Rate
2.048Mbps
Number Of Channels
1
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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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
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]
32 bits: 8 ports x 32 channels x 8 cells x 16 doublewords
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]
PXB 4219E, PXB 4220E, PXB 4221E
8
8
7
8
7
8
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]
IWE8, V3.4
1
2
1
2
B
2003-01-20
CLP
0
1
0
1
24
16
8
0
0
0
0
0
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