Alcor Micro AU9540 Техническое справочное руководство - Страница 14
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The following setup was used to measure the open loop voltage gain for crystal
oscillator circuits. The feedback resistor serves to bias the circuit at its quiescent
operating point and the AC coupling capacitor, Cs, is much larger than C1 and C2.
Figure 5.1 Crystal Oscillator Circuit Setup for Characterization
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Power Saving Mode
Under
power
mode, when the card is
removed,
the
connection of AU9540 will
be
disconnected
host.
If
the
card
inserted, then AU9540 will
be connected to the host.
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Table 5.5 Behavior Description
Test item
saving
1. Host is in normal
mode. While there is no
USB
card inserted, plug
AU9540 into host.
from
is
2. Host is in normal
mode. While there is
card
inserted,
AU9540 into host.
3. Host is in normal
mode. When AU9540 is
connected to the host
and
there
inserted in the slot, plug
off the card and plug in it
again.
4. When AU9540 is not
inserted into the host
and host is in suspend
mode, make sure there
is no card inserted into
AU9540
and
AU9540 USB Smart Card Reader V1.6
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Expected Behavior
AU9540 will be in suspending
mode. Host will not detect
AU9540.
AU9540 will be detected by the
host and ready to operate
plug
smart card.
When the card is removed,
AU9540 will be forced into
suspend mode. Host will detect
is
card
that AU9540 is removed. When
the card is inserted again,
AU9540 will be detected by the
host again.
Host will not detect AU9540.
And host will not be woken up.
plug
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