BU97930MUV_15 Datasheet, PDF (18/32 Pages) Rohm – Multifunction LCD Segment Driver

BU97930MUV MAX 108 segments (SEG27×COM4)
○GPO output set command (GPOSET)
MSB
LSB
D/C D6 D5 D4 D3 D2 D1 D0 Hex
1st byte Command
1
0
0
1
1
0
1
0 9Ah
2nd byte Command
0
0
0 P4 P3 P2 P1 0
-
(*: Don‟t care)
Reset
-
00h
Set GPO output data. The relation between SEG port (GPO port) and data is shown below.
GPOSET data
P1
P2
P3
P4
GPO port
GPO1
GPO2
GPO3
GPO4
SEG port
SEG26
SEG25
SEG24
SEG23
GPO data output is asynchronous from frame cycle.
In case INHb=”H”, GPO output signal follows GPOSET data, on the other hand, in case INHb=”L” GPO output is
GND level. GPO output is not affected by Display ON/OFF state.
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