TXC-05802AIPQ Transwitch Corporation, TXC-05802AIPQ Datasheet - Page 27

• Manufacturer Part Number: TXC-05802AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-05802AIPQ

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature Classification: Industrial
• Package Type: PQFP
• Mounting: Surface Mount
• Pin Count: 208
• Lead Free Status / Rohs Status: Not Compliant

CellBus Bus Routing Header
The CellBus Bus Routing Header is a 16-bit structure, which is formatted as described earlier in the CellBus Bus
Cell Routing subsection. Additional detail is provided in Appendix A of "CellBus Bus Technical Manual and
CUBIT- Pro Applications", TranSwitch document number TXC-05802-TM1.
Tandem Routing Header
If the Tandem Routing Header is to be used as a CellBus Bus Routing Header, as when passed through a
CUBIT- Pro in back-to-back mode, it must follow the same construction rules as a CellBus Bus Routing Header.
If the Tandem Routing Header is used for some proprietary purposes, its format will follow a different specifica-
tion.
OAM/RM Routing Mode Bits (C1,C0):
These bits are used to determine on which VPI/VCI OAM/RM cells are routed. The possible combinations
are:
Note: In order to use Tandem Routing Header, TRHENA =1 must be selected regardless of the table val-
ues.
C1,C0 = 0,0: the cell header is translated according to the values in the OAM/RM record (this value
C1,C0 = 0,1: for F4 flow this virtual path connection (VPC) OAM cells/RM-VPC cells are not routed
C1,C0 = 1,0: attach CellBus Bus Routing Header (CBRH) and Tandem Routing Header (TRH) only,
C1,C0 = 1,1: reserved
and OAMRMEN=0 should be selected for applications supporting CUBIT TXC-05801
functionality)
according to the OAM/RM record. Instead, these cells are routed according to the VP
record corresponding to the incoming VP.
For F5 flow this virtual circuit connection (VCC) OAM cells/RM-VCC cells are not routed
according to the OAM/RM record. Instead, these cells are routed according to the VC
record corresponding to the incoming VP/VC combination.
and preserve the incoming VP/VC combination
- 27 -
Ed. 3, November 1999
TXC-05802
CUBIT- Pro
TXC-05802-MB