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BU91600FV-M Datasheet, PDF (17/67 Pages) Rohm – Low Duty LCD Segment Driver
BU91600xxx Series MAX 148 Segments (37SEG x 4COM)
Datasheet
(2)When SCL is stopped at the high level
SCE
SCL
SDI
01 100010
D1
B0 B1 B2 B3 A0 A1 A2 A3
Device Code
8bits
D2
D32 D33 D34 D35 D36 D37 0
Display Data
37bits
0 0 0 0 0 0 0 KM0 KM1 KM2 P0 P1 P2 P3 P4 FL DR DT0 DT1 FC0 FC1 FC2 FC3 FC4 FC5 FC6 OC SC BU0 BU1 BU2 0 0
Control Data
33bits
DD
2 bits
01 10 0010
B0 B1 B2 B3 A0 A1 A2 A3
Device Code
8bits
D38 D39
D69 D70 D71 D72 D73 D74 0
Display Data
37bits
0 EP1 EP2 EP3 EP4 EP5 EP6 EP7 EP8 EP9 EP10 EP11 EP12 EP13 EP14 EP15 EP16 PG1 PG2 PG3 PG4 PG5 PG6 PF0 PF1 PF2 PF3 CT0 CT1 CT2 CT3 0 1
Control Data
33bits
DD
2 bits
01 100010
0
0
B0 B1 B2 B3 A0 A1 A2 A3
Device Code
8bits
0 0 0 0 0 0 0 0 0 0 0 0 W10 W11 W12 W13 W14 W15 W16 W17 W18 W20 W21 W22 W23 W24 W25 W26 W27 W28 W30 W31 W32 W33 W34 W35 W36 W37 W38 1 0
Control Data
70bits
DD
2 bits
01 100010
0
0
B0 B1 B2 B3 A0 A1 A2 A3
Device Code
8bits
0
0
00 0
0
00
0
00
0 W40 W41 W42 W43 W44 W45 W46 W47 W48 W50 W51 W52 W53 W54 W55 W56 W57 W58 W60 W61 W62 W63 W64 W65 W66 W67 W68 1 1
Control Data
70bits
(Note)
DD
2 bits
(Note) DD is direction data.
Figure 14. 3-SPI Data Transfer Format
・Device code・・・・・・・・・・・・・・・・・・”46H”
・KM0 to KM2・・・・・・・・・・・・・・・・・・・Key Scan output port/Segment output port switching control data
・D1 to D74・・・・・・・・・・・・・・・・・・・・・Display data
・P0 to P4・・・・・・・・・・・・・・・・・・・・・・Segment / PWM / General Purpose output port switching control data
・FL・・・・・・・・・・・・・・・・・・・・・・・・・・・Line Inversion or Frame Inversion switching control data
・DR・・・・・・・・・・・・・・・・・・・・・・・・・・1/3 bias drive or 1/2 bias drive switching control data
・DT0 to DT1・・・・・・・・・・・・・・・・・・・・1/4 duty drive, 1/3 duty drive, 1/2 duty drive or 1/1 duty(static) drive switching control data
・FC0 to FC6・・・・・・・・・・・・・・・・・・・Common/Segment output waveform frame frequency switching control data
・OC・・・・・・・・・・・・・・・・・・・・・・・・・ Internal oscillator operating mode/External clock operating mode switching control data
・SC・・・・・・・・・・・・・・・・・・・・・・・・・・Segment on/off switching control data
・BU0 to BU2・・・・・・・・・・・・・・・・・・・Normal mode/power-saving mode switching control data
・PG1 to PG6・・・・・・・・・・・・・・・・・・PWM/General Purpose Output(GPO) switching control data
・EP1 to EP16・・・・・・・・・・・・・・・・・Internal PWM/External PWM switching control data (EP1-EP6),
GPO/External PWM switching control data (EP7-EP16)
・PF0 to PF3・・・・・・・・・・・・・・・・・・・PWM output waveform frame frequency switching control data.
・CT0 to CT3・・・・・・・・・・・・・・・・・・・LCD display contrast switching control data.
・W10 to W18, W20 to W28, W30 to W38, W40 to W48, W50 to W58, W60 to W68
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・PWM output duty switching control data
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16.Feb.2016 Rev.001