pxb4340e Infineon Technologies Corporation, pxb4340e Datasheet - Page 33

• Manufacturer Part Number: pxb4340e
• Description: Atm Oam Processor Aop
• Manufacturer: Infineon Technologies Corporation

At the CC termination point (see
• discard of CC cells (see
• declaration of LOC
• declaration of LOC
The LOC failure state is notified to the control processor, while still AIS cells are automatically
generated. This additional filtering according to the standards avoids frequent notifications to the
microprocessor due to sporadic errors (see bits 3..0 of register ISR0,
All cell insertions are initiated by the SCAN mechanism (see
given are default values, recommended by I.610 [ ]. The PXB 4340 AOP allows to program
these values in multiples of the SCAN frequency which in turn is given by the microprocessor.
The corresponding register is named SCCONF0 (see
Data Sheet
3.5 seconds absence of user or OAM cells (see
setup of
new connetion
CC inactive
setup of
new connection
CC inactive
CC activated for
VPC/VCC by uP
CC deactivated for
VPC/VCC by uP
state if LOC defect state persists for 2.5 seconds.
state and insertion of AIS cells in one second intervals after
, marker ó)
First valid ATM cell
for VPC/VCC received
):
notification to uP
CC activated for
VPC/VCC by uP
CC deactivated for
VPC/VCC by uP
CC active
2-33
, marker ì)
No valid ATM cell for VPC/VCC
received for programmable
Tr (<= 7.5 sec, default: 3.5 sec)
First valid ATM cell
for VPC/VCC received
Loss of
Continuity
Failure
Insert CC cell if
no user cell transmitted
for programmable Ts
(<= 1.5 sec, default 1 sec)
CC active
page 78).
). The delay times
Send periodically AIS/RDI
No valid ATM cell for VPC/VCC
received for programmable
Tdef (<= 7.5 sec, default: 2.5 sec)
notification to uP
Loss of
Continuity
Defect
every 1 second
Send periodically AIS/RDI
).
every 1 second
04.2000