XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 77

• 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

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3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
A20
D26
STS1RXD_PL_0
STS1RXD_PL_1
RXIDLE_0
RXIDLE_1
RXLCD_0
RXLCD_1
O
O
CMOS
CMOS
STS-1 Receive (Drop) Telecom Bus – Payload Indicator
Output Signal – Channel 0:
The exact function of this output pin depends upon whether
the user has enabled or disabled the “STS-1 Telecom Bus
Interface block” associated with Channel 0.
If the STS-1 Telecom Bus Interface (associated with
Channel 0) is enabled – STS-1/STS-1 Receive (Drop)
Telecom Bus – Payload Indicator Output – STS1RXD_PL_0:
This output pin indicates whether or not Transport Overhead
bytes are being output via the “STS1RXD_D_0[7:0]” output
pins.
This output pin is pulled “low” for the duration that the STS-1
Receive Telecom Bus is transmitting a Transport Overhead
byte via the “STS1RXD_D_0[7:0]” output pins.
Conversely, this output pin is pulled “high” for the duration that
the STS-1 Receive Telecom Bus is transmitting something
other
“STS1RXD_D_0[7:0]” output pins.
RXIDLE_0 (Receive HDLC block idle indicator – Channel
0)
RXLCD_0
Delineation – Channel 0)
STS-1 Receive (Drop) Telecom Bus – Payload Indicator
Output Signal – Channel 1:
The exact function of this output pin depends upon whether
the user has enabled or disabled the “STS-1 Telecom Bus
Interface block” associated with Channel 1.
If the STS-1 Telecom Bus Interface (associated with
Channel 1) is enabled – STS-1/STS-1 Receive (Drop)
Telecom Bus – Payload Indicator Output – STS1RXD_PL_1:
This output pin indicates whether or not Transport Overhead
bytes are being output via the “STS1RXD_D_1[7:0]” output
pins.
This output pin is pulled “low” for the duration that the STS-1
Receive Telecom Bus is transmitting a Transport Overhead
byte via the “STS1RXD_D_1[7:0]” output pins.
Conversely, this output pin is pulled “high” for the duration that
the STS-1 Receive Telecom Bus is transmitting something
other
“STS1RXD_D_1[7:0]” output pins.
RXIDLE_1 (Receive HDLC block idle indicator – Channel
1)
RXLCD_1
Delineation – Channel 1)
77
than
than
(Receive
(Receive
a
a
Transport
Transport
Cell
Cell
Processor
Processor
Overhead
Overhead
Loss
Loss
byte
byte
XRT94L33
via
via
of
of
Rev.1.2.0.
Cell
Cell
the
the