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| 型号： | BU97930MUV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 9/31页 |
| 文件大小： | 0K |
| 描述： | IC LCD DVR MULTI 27X4COM 40-VQFN |
| 标准包装： | 1 |
| 显示器类型： | LCD |
| 配置： | 点阵 |
| 接口： | 3 线 SPI 串行 |
| 电流 - 电源： | 30µA |
| 电源电压： | 1.8 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN，40-VFQFPN |
| 供应商设备封装： | 40-VQFN |
| 包装： | 标准包装 |
| 其它名称： | BU97930MUV-E2DKR |
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BU97930MUV
MAX 108 segments (SEG27×COM4)
Datasheet
○ Blink function
This device has Blink function. Blink function can set each segment port individually.
Blink ON/OFF and Blink frequency are set by the BLKSET command.
Blink frequency varies according to fCLK characteristics.
Blink setup of each segment is controlled by BLKWR command.
The write start address is specified by “BLKADSET” command. And this address will automatically increment every 4 bits
of blink data received. The relation of BLKWR command, blink ram data, and blinking segment port is below.
In case data is “1”, segment will blink, on the other hand when data is “0”, segment will not blink.
(In case data is written continuously after write data at 1Ah (SEG26), RAM data will be written to 1Bh (dummy address)
and return to address 00h (SEG0) automatically.)
Please refer to the following figures about Blink operation of each segment.
In case SEG port assigned to GPO port by OUTSET command, corresponding SEG address does not change and used
as dummy address.
1st Byte
2nd Byte
1st Byte
2nd Byte
Command Command
Command Command
Command
10000100
00000011
10000111
00000000
11000000
a b c d
e
f
g
h
i
j
k
l
m n
o
p
…
Blink set
Blink Address set
Blink
RAMWR
Blink RAM data
Blink RAM address
00
01
02
03
04
05
06
07
???
19h
1Ah
1Bh
0
1
a
b
e
f
i
j
m
n
COM0
COM1
BIT
2
3
c
d
g
h
k
l
o
p
COM2
COM3
SEG
0
SEG
1
SEG
2
SEG
3
SEG
4
SEG
5
SEG
6
SEG
7
SEG
25
SEG
26
DDRAM data
SEG A
SEG B
SEG C
SEG D
Blink RAM data
SEG A
SEG B
SEG C
SEG D
Segment output
SEG A
SEG B
SEG C
SEG D
SEG A
SEG B
SEG C
SEG D
SEG A
SEG B
SEG C
SEG D
SEG A
SEG B
SEG C
SEG D
Blink frequency
under the 2Hz stting segment output will blink every 0.5 second (ON->OFF->ON)
Figure 9. Blink Operation
SEGA/B is blink
www.rohm.com
? 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
9/28
TSZ02201-0A0A2D300060-1-2
8.Jan.2013 Rev.002
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