xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 260
xrt94l33
Manufacturer Part Number
xrt94l33
Description
Multi-channel, Multi-function Device Aggregates 3 Ds3/e3/sts-1 Into Oc3/stm-1
Manufacturer
Exar Corporation
Datasheet
1.XRT94L33.pdf
(465 pages)
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XRT94L33
Rev.1.2.0.
2.2.8.3.2.3
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 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 SONET Path – RDI-P Condition Register – Byte 1, as illustrated below.
Transmit SONET Path – RDI-P Control Register – Byte 1 (Address = 0xN9CA)
By writing this particular value into these bit-fields the user is specifying the value that the “Transmit SONET
POH Processor” block will set the RDI-P bit-fields (within the G1 byte of outbound STS-1 frame) to whenever
the corresponding Receive SONET POH Processor block declares the UNEQ-P condition.
STEP 2 – Set Bit 0 (Transmit RDI-P upon UNEQ-P) within the “Transmit SONET Path – RDI-P Control
Register – Byte 1” to “1”, as illustrated below.
Transmit SONET Path – RDI-P Control Register – Byte 1 (Address = 0xN9CA)
This step configures the Transmit SONET 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 SONET POH
Processor” block declares the “UNEQ-P” condition.
2.2.8.3.2.4
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 block declaring the LOP-P
condition, by executing the following steps.
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 SONET POH Processor block to automatically transmit RDI-
P, in response to declaration of the UNEQ-P Condition
Configuring the Transmit SONET POH Processor block to automatically transmit RDI-
P, in response to declaration of the LOP-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
260
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
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