pxb4219 Infineon Technologies Corporation, pxb4219 Datasheet - Page 40

• Manufacturer Part Number: pxb4219
• Description: Iwe8 Interworking Element For 8 E1/t1 Lines
• Manufacturer: Infineon Technologies Corporation

3.2
Figure 6
Data Sheet
CV
FR
SL
FT
CK
Recovery
Interface
Interface
Interface
Transmit
Functional Block Diagram
External
Receive
Clock &
Framer
Framer
Serial
Reset
Clock
Loop
Block Diagram
x8
x8
x8
OR
OT
EQ
ICRC
Processing
Processing
Recovery
Transmit
Receive
Internal
Circuit
Queue
Clock
Event
Octet
Octet
OQ
RB
OM
Processing
AAL Segmentation / AAL Reassembly Buffers
Output
Queue
Buffer
OAM
RTS
Statistics Counters, Threshold Timers
Cell Insertion / Cell Extraction Buffers
40
ATM Transmit / ATM Receive Buffers
x8
To Microprocessor
PXB4219 / PXB4220 / PXB4221
RM
CR
IE
CT
External RAM
Cell Extraction
Segmentation
Cell Insertion
Cell Transmit
Cell Receive
Processing /
Processing /
Reassembly
processor
Interface
Interface
External
Micro-
RAM
AAL
AAL
MP
Functional Description
JT
IQ
Interface
Interrupt
Queue
JTAG
UR
UT
2002-05-06