XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 261

• Manufacturer Part Number: XRT94L33IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L33IB-L

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
STEP 1 – Write the appropriate value into Bits 7 through 5 (LOP-P RDI-P Code[2:0]) within the
“Transmit SONET Path – RDI-P Control Register – Byte 0”; as illustrated below.
Transmit SONET Path – RDI-P Control Register – Byte 0 (Address = 0xN9CB)
By writing this particular value into these three bit-fields, the user is specifying the value that the Transmit
SONET POH Processor block will set the RDI-P bit-fields (in the G1 byte, within the “outbound” STS-1 data-
stream) whenever the corresponding Receive SONET POH Processor block declares the LOP-P condition.
STEP 2 – Set Bit 4 (Transmit RDI-P upon LOP-P) within the “Transmit SONET Path – RDI-P Control
Register – Byte 0” to “1”; as illustrated below.
Transmit SONET Path – RDI-P Control Register – Byte 0 (Address = 0xN9CB)
This step configures the Transmit SONET POH Processor block to automatically transmit the RDI-P indicator
(per the values written into Bits 3 through 1, within this register); anytime the corresponding “Receive SONET
POH Processor” block declares the “LOP-P” condition.
2.2.8.3.2.5
The user can configure the Transmit SONET POH Processor block to automatically transmit the RDI-P
indicator, in response to the corresponding Receive SONET POH Processor declaring the AIS-P condition, by
executing the following steps.
STEP 1 – Write the appropriate value into Bits 3 through 1 (AIS-P RDI-P Code[2:0]) within the
“Transmit SONET Path – RDI-P Control Register – Byte 0”; as illustrated below.
Transmit SONET Path – RDI-P Control Register – Byte 0 (Address = 0xN9CB)
By writing this particular value into these three bit-fields, the user is specifying the value that the Transmit
SONET POH Processor block will set the RDI-P bit-fields (in the G1 byte, within the “outbound” STS-1 data-
stream) whenever the corresponding Receive SONET POH Processor block declares the AIS-P condition.
B
B
B
R/W
R/W
R/W
IT
IT
IT
X
X
X
7
7
7
LOP-P RDI-P Code[2:0]
LOP-P RDI-P Code[2:0]
LOP-P RDI-P Code[2:0]
Configuring the Transmit SONET POH Processor block to automatically transmit RDI-
P, in response to declaration of the AIS-P Condition
B
B
B
R/W
R/W
R/W
IT
X
IT
X
IT
X
6
6
6
B
B
B
R/W
R/W
R/W
IT
IT
IT
X
X
X
5
5
5
RDI-P upon
RDI-P upon
RDI-P upon
Transmit
Transmit
Transmit
LOP-P
LOP-P
LOP-P
B
B
B
R/W
R/W
R/W
IT
IT
IT
0
1
1
4
4
4
261
B
B
B
R/W
R/W
R/W
IT
IT
IT
X
0
0
3
3
3
AIS-P RDI-P Code[2:0]
AIS-P RDI-P Code[2:0]
AIS-P RDI-P Code[2:0]
B
B
B
R/W
R/W
R/W
IT
IT
IT
0
0
X
2
2
2
B
B
B
R/W
R/W
R/W
IT
IT
IT
X
0
0
1
1
1
XRT94L33
RDI-P upon
RDI-P upon
RDI-P upon
Transmit
Transmit
Transmit
AIS-P
AIS-P
AIS-P
Rev.1.2.0.
B
B
B
R/W
R/W
R/W
IT
IT
IT
0
0
0
0
0
0