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14
2-4. Clock System
The unit has the following three vibrators shown in Table.2-5. (See Fig.2-1)
Table.2-5 Vibrators
Vibrator Name
Wake-up Mode
Sleep Mode
Remark
Battery Driving
VBUS Driving
Battery Driving only
X801 (32kHz)
Yes (Oscilating)
Yes (Oscilating)
Yes (Oscilating)
Always oscillating
X101 (12MHz)
No (Not oscilating)
Yes (Oscilating)
No (Not oscilating)
Oscillating only when VBUS
voltage is supplied to the unit.
voltage is supplied to the unit.
X102 (45.1584MHz)
Yes (Oscilating)
Yes (Oscilating)
Yes (Oscilating)
Always oscillating
The clock [32kHz] which is output from Real Time Clock, X801 is used as the master clock of TUNER IC2702. (NW-E00XF only)
When TUNER function are “ON”, System Controller IC101 outputs “H” signal from pin-235 [CS4].
Table.2-6 MASTER CLOCK for TUNER IC2702
Output Terminal
TUNER ON
TUNER OFF
System Controller IC101 pin-235 [CS4]
H
L
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