LC75841PE
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4. OC: RC oscillator operating mode/external clock operating mode switching control data
This control data bit switches the OSC pin function
(either RC oscillator operating mode or external clock operating mode).
However RC oscillator operating mode is forcibly selected when in 842 mode data transfer.
OC OSC pin function
0 RC oscillator operating mode
1 External clock operating mode
Note: An external resistor, Rosc, and an external capacitor, Cosc, must be connected to the OSC pin if RC oscillator
operating mode is selected.
5. SC: Segment on/off control data
This control data bit controls the on/off state of the segments.
SC Display state
0 On
1 Off
Note that when the segments are turned off by setting SC to 1, the segments are turned off by outputting segment off
waveforms from the segment output pins.
6. BU: Normal mode/power-saving mode control data
This control data bit selects either normal mode or power-saving mode.
BU Mode
0 Normal mode
1
Power-saving mode.
In RC oscillator operating mode (OC = 0), the OSC pin oscillator is stopped, and in external clock operating mode
(OC = 1), acceptance of the external clock is stopped. In this mode the common and segment output pins go to the
V
SS
levels. However, S1/P1 to S4/P4 output pins that are set to be general-purpose output ports by the control data
P0 to P2 can be used as general-purpose output ports.
