TXC-05802AIPQ Transwitch Corporation, TXC-05802AIPQ Datasheet - Page 31

• 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

The corresponding formats for OAM translation records are shown in Figure 24.
Note: OAM/RM Translation Records are optional. They are located in VCI page zero.
5
4
3
2
1
0
5
4
3
2
1
0
VPI and VCI Translation
for OAM cells, TRHENA=0
IDLE VCI, TRHENA=0
CellBus Bus Routing Header MSB
CellBus Bus Routing Header LSB
A C1 C0
A C1 C0
1
0
0
0
0
0
VCI, 8 MSB
VCI, 8 LSB
VPI, 8 LSB
1/0
1/0
I
I
VPI, 4 MSB
Figure 23. OAM F4 and RM-VPC Cell Routing (Bit OAMRMEN=1)
Route According
to VC = 0..5 or
VCI = 0..5 or
in VC Page 0
Figure 24. OAM/RM-Cells Translation Record Formats
7..31
7..31?
Yes
VPI Translation?
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Incoming Cell
VCI = 0..31?
E-Bit = 1?
VPI and VCI Translation
for OAM cells, TRHENA=1
IDLE VCI, TRHENA=1
CellBus Bus Routing Header MSB
CellBus Bus Routing Header LSB
A C1 C0
A C1 C0
1
0
Tandem Routing Header MSB
Tandem Routing Header LSB
0
Yes
0
Yes
0
0
Route According
VCI, 8 MSB
VCI, 8 LSB
VPI, 8 LSB
in VC Page 0
1/0
1/0
I
to VC = 32
I
VCI = 6 &
PT = 110?
No
No
No
VPI, 4 MSB
- 31 -
Yes
No
The C1 and C0 bits determine the
type of translation for OAM/RM cells
received. The coding is explained in
the “Translation Records Control
Bits” section.
If the VCI is inactive (A=0) and not
Ignore (I=0), then OAM cells arriving
bearing that VCI number are dis-
carded and counted as misrouted. If
I=1, they are discarded and not
counted as misrouted.
If the VCI is active (A=1), then the VPI
and VCI numbers to be inserted in the
cell, and the CellBus Bus Routing
Header to be used, are read from the
OAM translation record at the positions
indicated.
Route According
in VC Page 0
to VC = 6
VCI = 6?
Yes
to VP/VC Translation
Route According
Route According
to VP # Record
Ed. 3, November 1999
TXC-05802
CUBIT- Pro
TXC-05802-MB