BU97931FV Datasheet, PDF (13/32 Pages) Rohm – Multifunction LCD Segment Driver

BU97931FV MAX 112 segments (SEG28×COM4)
○Address set (ADSET)
1st byte Command
2nd byte Command
MSB
LSB
D/C D6 D5 D4 D3 D2 D1 D0 Hex
1
0
0
0
0
0
1
1 83h
0
0
0 P4 P3 P2 P1 P0
-
Sets start address to write DDRAM data.
The address can be set from 00h to 1Bh.
Do not set other address. (Except 00h to 1Bh address is not acceptable.)
In case writing data to DDRAM, make sure to send RAMWR command.
○Blink set (BLKSET)
1^st byte Command
2^nd byte Command
MSB
LSB
D/C D6 D5 D4 D3 D2 D1 D0 Hex
1
0
0
0
0
1
0
0 84h
0
0
0
0
0 P2 P1 P0
-
Set Blink ON/OFF.
For more details, please refer to "Blink function".
Blink set
Blink mode(Hz)
OFF
1.6
2.0
2.6
4.0
*: Don’t care
P2 P1 P0
0 0/* 0/*
1
0
0
1
0
1
1
1
0
1
1
1
Reset state
○
○Blink address set (BLKADSET)
MSB
LSB
D/C D6 D5 D4 D3 D2 D1 D0 Hex
1st byte Command
1
0
0
0
0
1
1
1 87h
2nd byte Command
0
0
0 P4 P3 P2 P1 P0
-
Sets RAM start address to write Blink data.
The address can be set from 00h to 1Bh.
Do not set other addresses. (Except 00h to 1Bh address is not acceptable)
In case writing data to Blink RAM, make sure to send BLKWR command.
Reset
-
00h
Reset
-
00h
Reset
-
00h
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TSZ02201-0A0A2D300070-1-2
10.Apr.2015 Rev.004