BU91520KV-M Datasheet, PDF (8/45 Pages) Rohm – Low Duty LCD Segment Driver

BU91520KV-M
(2) When SCL is stopped at the high level
SCE
SCL
L
SDI
0
1
0
0
0
0
1
0
B0
B1
B2
B3
A0
A1
A2
A3
Device Code
8bit
D1 D2
D71 D72 0
0
0
0
0 KM0 KM1 KM2 P0 P1 P2 FL DR DT FC0 FC1 FC2 OC SC BU0 BU1 BU2 0
0
Display Data
72bit
Control Data
DD
22bit
2bit
0
1
0
0
0
0
1
0
B0
B1
B2
B3
A0
A1
A2
A3
Device Code
8bit
D73 D74
D143 D144 D145 D146 D147 D148 D149 D150 D151 D152 D153 D154 D155 D156 PG1 PG2 PG3 PG4 PG5 PG6 PF0 PF1 PF2 PF3
0
1
Display Data
84bit
Control Data
DD
10bit
2bit
0
1
0
0
0
0
1
0
B0
B1
B2
B3
A0
A1
A2
A3
D157 D158
D216 0
0
0
0
Device Code
8bit
Display Data
60bit
0
0
0 W10 W11
W16 W17 W20 W21
W26 W27 W30 W31
W36 W37 1
0
Control Data
DD
34bit
2bit
0
1
0
0
0
0
1
0
B0
B1
B2
B3
A0
A1
A2
A3
D217 D218
D276 0
0
0
0
Device Code
8bit
Display Data
60bit
0
0
0 W40 W41
W46 W47 W50 W51
W56 W57 W60 W61
W66 W67 1
1
Control Data
DD
34bit
2bit
Figure 8. 3-SPI Data Transfer Format^(Note7)
(Note7) DD is direction data.
Device code ---------------------------------- ”42H”
D1 to D162 ----------------------------------- Display data
KM0 to KM2 ---------------------------------- Key Scan output port/Segment output port switching control data
P0 to P2 --------------------------------------- Segment output port/general-purpose output port switching control data
FL ----------------------------------------------- Inversion type select control data
DR ---------------------------------------------- 1/3-Bias or 1/2-Bias drive switching control data
DT ---------------------------------------------- 1/4-Duty or 1/3-Duty drive switching control data
FC0 to FC2 ----------------------------------- Common/segment output waveform frame frequency setting control data
OC ---------------------------------------------- Internal oscillator operating mode/External clock operating mode switching control data
SC ----------------------------------------------- Segment on/off control data
BU0 to BU2 ----------------------------------- Normal mode/power-saving mode control data
PG1 to PG6 ----------------------------------- PWM/General Purpose output select data
PF0 to PF3 ------------------------------------ PWM output waveform frame frequency setting control data.
Wn0 to Wn7 (n=1 to 6) --------------------- PWM output duty setting control data
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TSZ02201-0P4P0D301340-1-2
22.Jan.2016 Rev.001