XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 292
XRT94L33IB-L
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XRT94L33IB-L
Manufacturer:
Exar Corporation
Quantity:
10 000
- Current page: 292 of 465
- Download datasheet (3Mb)
XRT94L33
Rev.1.2.0.
2.2.8.3.11
Forcing Pointer Adjustments and NDF Events via Software
The “Transmit SONET POH Processor” block permits the user to insert pointer adjustments or NDF events
into the “outbound” STS-1 data stream. Specifically, the Transmit SONET POH Processor block permits the
user to implement the following “pointer-related” features.
• To force the pointer to shift to an “arbitrary value”
• To configure the Transmit SONET POH Processor block to only insert pointer-adjustment or NDF events, if
no pointer-adjustment (NDF or otherwise) events have occurred within the last three (3) STS-1 framing
periods.
• To force a “Positive-Stuff” pointer-adjustment event
• To force a “Negative-Stuff” pointer-adjustment event
• To force a Single NDF Event
• To force a Continuous NDF Event
• To read out and determine the current “pointer-value” within the outbound STS-1 data-stream.
The procedure for implementing each of these “pointer-related” events is presented below.
2.2.8.3.11.1
The Transmit SONET POH Processor block permits the user to assign the arbitrary value to the pointer bytes,
within the outbound STS-1 SPE data-stream. The user can invoke this feature by executing the following
steps.
STEP 1 – Write the appropriate “NDF”, “SS” and H1, H2 Pointer values into the “Transmit SONET Path
– Transmit Arbitrary H1 Pointer” register, and the “Transmit SONET Path – Transmit Arbitrary H2
Pointer” register.
The bit-format for these two registers is presented below.
Transmit SONET Path – Transmit Arbitrary H1 Byte Pointer Register (Address = 0xN9BF)
Transmit SONET Path – Transmit Arbitrary H2 Byte Pointer Register (Address = 0xN9C3)
B
B
R/W
R/W
IT
IT
0
0
7
7
POINTER-ADJUSTMENT/NDF OPTIONS
Forcing the Pointer to Shift to an Arbitrary Value
B
B
R/W
R/W
IT
IT
0
0
6
6
NDF Bits
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
H2 Pointer Value[7:0]
B
B
R/W
R/W
IT
IT
0
0
4
4
292
B
B
R/W
R/W
IT
IT
0
0
3
3
SS Bits
B
B
R/W
R/W
IT
IT
0
0
2
2
B
B
R/W
R/W
IT
H1 Pointer Value
IT
0
0
1
1
xr
B
B
R/W
R/W
IT
IT
0
0
0
0
Related parts for XRT94L33IB-L
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Multi-channel, Multi-function Device Aggregates 3 Ds3/e3/sts-1 Into Oc3/stm-1
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
BiCMOS Fixed, Quad, Voltage Output, Single or Dual Supply 8-Bit Digital-to-Analog Converter
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
Voltage-Controlled Oscillator
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
INTEGRATED LINE TRANSMITTER
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
Monolithic Function Generator
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
CMOS Microprocessor Compatible Double-Buffered 12-Bit Digital-to-Analog Converter
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
CMOS 6 BIT HIGH SPEED ANALOG TO DIGITAL CONVERTER
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
8-Channel, Voltage Output 10 MHz Input Bandwidth 8-Bit Multiplying DACs with Serial Digital Data Por
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
15 V CMOS Multiplying10-Bit Digital-to-Analog Converter
Manufacturer:
Exar Corporation
Datasheet:
Part Number:
Description:
Monolithic Function Generator
Manufacturer:
Exar Corporation
Datasheet: