XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 220

• 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

XRT94L33
Rev.1.2.0.
2.2.7.3.2.3
The user can configure the Transmit STS-3c POH Processor block to automatically transmit the RDI-P
indicator, in response to the corresponding Receive STS-3c POH Processor block declaring the UNEQ-P
condition, by executing the following steps.
STEP 1 – Write the appropriate value into Bits 3 through 1 (UNEQ-P RDI-P Code[2:0]) within the
“Transmit STS-3c Path – RDI-P Condition Register – Byte 1, as illustrated below.
Transmit STS-3c Path – RDI-P Control Register – Byte 1 (Address = 0x19CA)
By writing this particular value into these bit-fields the user is specifying the value that the “Transmit STS-3c
POH Processor” block will set the RDI-P bit-fields (within the G1 byte of outbound STS-3c frame) to whenever
the corresponding Receive STS-3c POH Processor block declares the UNEQ-P condition.
STEP 2 – Set Bit 0 (Transmit RDI-P upon UNEQ-P) within the “Transmit STS-3c Path – RDI-P Control
Register – Byte 1” to “1”, as illustrated below.
Transmit STS-3c Path – RDI-P Control Register – Byte 1 (Address = 0x19CA)
This step configures the Transmit STS-3c POH Processor block to transmit the RDI-P indicator (per the
values written into Bits 3 through 1, within this register); anytime the corresponding “Receive STS-3c POH
Processor” block declares the “UNEQ-P” condition.
B
B
R/W
R/W
IT
IT
0
0
7
7
TIM-P RDI-P Code[2:0]
TIM-P RDI-P Code[2:0]
Configuring the Transmit STS-3c POH Processor block to automatically transmit RDI-
P, in response to declaration of the UNEQ-P Condition
B
B
R/W
R/W
IT
IT
0
0
6
6
B
B
R/W
R/W
IT
IT
0
0
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
5
5
RDI-P upon
RDI-P upon
Transmit
Transmit
TIM-P
TIM-P
B
B
R/W
R/W
IT
IT
0
0
4
4
220
B
B
R/W
R/W
IT
X
IT
X
3
3
UNEQ-P RDI-P Code[2:0]
UNEQ-P RDI-P Code[2:0]
B
B
R/W
R/W
IT
IT
X
X
2
2
B
B
R/W
R/W
IT
X
IT
X
1
1
xr
RDI-P upon
RDI-P upon
Transmit
UNEQ-P
Transmit
UNEQ-P
B
B
R/W
R/W
IT
IT
0
1
0
0