DATASHEET
PM5349 S/UNI-QUAD
ISSUE 6 | SATURN USER NETWORK INTERFACE | |
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13.5 Loopback Operation
The
The line loopback, see Figure 14, connects the high speed receive data and clock to the high speed transmit data and clock, and can be used for line side investigations (including clock recovery and clock synthesis). While in this mode, the entire receive path is operating normally and cells can be received through the FIFO interface.
The serial diagnostic loopback, see Figure 15, connects the high speed transmit data and clock to the high speed receive data and clock. While in this mode, the entire transmit path is operating normally and data is transmitted on the TXD+/- outputs.
The parallel diagnostic loopback, see Figure 16, connects the byte wide transmit data and clock to the byte wide receive data and clock. While in this mode, the entire transmit path is operating normally and data is transmitted on the TXD+/- outputs.
Proprietary and Confidential to | 208 |