XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 308

• 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
XRT94L33
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Rev.1.2.0.
Figure 62 and Figure 63.
The “Transmit STS-3 TOH Processor” block will transmit STS-3 frames to the remote LTE. Likewise, the
“Receive STS-3 TOH Processor” block will receive and process STS-3 frames, originating from the remote
LTE. The “Near-End” Receive STS-3 TOH Processor” block is going to verify the values of the B2 bytes,
within the incoming STS-3 frames (from the remote LTE). If the “Near-End” Receive STS-3 TOH Processor”
block detects no B2 byte errors, in the incoming STS-3 frame, then it will notify the remote LTE of this fact, by
having the “Near-End” Transmit STS-3 TOH Processor” block set the “REI-L” bits, within the M0 byte (in the
“outbound”
STS-3
frame)
to
the
value
“0”.
This
phenomenon
is
illustrated
in
308