LC75839PW Datasheet, PDF (13/27 Pages) Sanyo Semicon Device – 1/4 and 1/3-Duty General-Purpose LCD Display Driver

LC75839PW
Control Data Functions
(1) PS10 and PS11, PS2 to PS4 … General-purpose output port (P1 to P4) function setting control data
These control data bits set the general-purpose output function (High or low level output), clock output function or
PWM output function of the P1 output pin, and the general-purpose output function (High or low level output) or
PWM output function of the P2 to P4 output pins.
However, be careful of being unable to set a PWM output function when the external clock operating frequency is
set the fCK2=38[kHz] typ (EXF="1") in external clock operating mode (OC= "1").
PS10
PS11
General-purpose output port (P1) function
0
0
General-purpose output function (High or low level output)
1
0
0
1
1
1
Clock output function (Clock frequency : fosc/2, fCK/2)
Clock output function (Clock frequency : fosc/8, fCK/8)
PWM output function (Support for PWM data W10 to W15)
PS2
General-purpose output port (P2) function
0
General-purpose output function (High or low level output)
1
PWM output function (Support for PWM data W20 to W25)
PS3
General-purpose output port (P3) function
0
General-purpose output function (High or low level output)
1
PWM output function (Support for PWM data W30 to W35)
PS4
General-purpose output port (P4) function
0
General-purpose output function (High or low level output)
1
PWM output function (Support for PWM data W10 to W15)
(2) EXF … External clock operating frequency setting control data
This control data sets the operating frequency of the external clock which input into the OSCI pin, when the external
clock operating mode (OC=”1”) is set. However, this control data is effective only when external clock operating
mode (OC= "1") is set.
EXF
External clock operating frequency fCK[kHz]
0
fCK1=300[kHz]typ
1
fCK2=38[kHz]typ
No.A1953-13/27