S2060 AMCC (Applied Micro Circuits Corp), S2060 Datasheet - Page 18

• Manufacturer Part Number: S2060
• Description: Gigabit Ethernet Transceiver
• Manufacturer: AMCC (Applied Micro Circuits Corp)

OTHER OPERATING MODES
Loopback Mode
The S2060 supports internal loopback mode in
which the serial data from the transmitter replaces
external serial data. The loopback function is en-
abled when the loopback enable signal, EWRAP, is
set ACTIVE.
The loopback mode provides the ability to perform
system diagnostics and to perform off-line testing of
the interface to guarantee the integrity of the serial
channel before enabling the transmission medium.
Figure 13 shows the basic loopback operation.
18
Figure 12. Receiver Timing Half Rate Mode (RATEN Inactive)
S2060
Table 9. S2060 Receiver Timing
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