PXB4221 Infineon Technologies AG, PXB4221 Datasheet - Page 5
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PXB4221
Manufacturer Part Number
PXB4221
Description
IWE8 Interworking Element for 8 E1/T1 Lines
Manufacturer
Infineon Technologies AG
Datasheet
1.PXB4221.pdf
(290 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PXB4221EV3.2
Manufacturer:
INFIEON
Quantity:
20 000
- Current page: 5 of 290
- Download datasheet (5Mb)
Table of Contents
1
1.1
1.2
1.3
1.3.1
1.3.2
1.4
1.5
2
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.10
3
3.1
3.1.1
3.1.2
3.1.2.1
3.1.2.2
3.2
3.3
4
4.1
4.1.1
4.1.1.1
4.1.1.2
4.1.1.3
4.1.1.4
4.1.1.5
4.1.2
4.2
4.2.1
4.2.1.1
Data Sheet
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Differences Between PXB4220 And PXB4219 . . . . . . . . . . . . . . . . . . . . . 24
Differences Between PXB4220 And PXB4221 . . . . . . . . . . . . . . . . . . . . . 24
Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Functional Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
ATM Transmit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
ATM Receive Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Line Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Echo Canceller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Generic Framer Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
UTOPIA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
IMA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Clock Recovery Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Microprocessor Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
External RAM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Test Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Not Connected Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
ATM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
AAL Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Setup of ATM Transmit Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Cell rate de-coupling: Idle/Unassigned Cell Insertion . . . . . . . . . . . . 46
Unstructured CES Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Structured CES Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
ATM Transmit Buffer Filling Level . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cell Discarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Cell Payload Scrambling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
HEC Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Cell Delineation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5
PXB4219 / PXB4220 / PXB4221
2002-05-06
Page
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