AK4186 AKM [Asahi Kasei Microsystems], AK4186 Datasheet - Page 16

• Manufacturer Part Number: AK4186
• Description: Low Power Touch Screen Controller with I2C Interface
• Manufacturer: AKM [Asahi Kasei Microsystems]

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Upon power-up, the AK4186 must be reset by writing the reset command. (Refer to the “
details) This ensures that all internal register reset to their initial values (00H) and set the channel to X-axis (auto driver
= OFF). The System reset can also stop a sequential measurement forcibly, but all data will be cleared.
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1. Setup Command Configuration
MS1068-E-04
Addr
01H
System Reset
Setup Function of Touch Panel
Setup Command
Register Name
1
0
0
Figure 19. Data Transfer Sequence at the System Reset
PANEL
SDA
(Those CAD1/0 should match with CAD1/0 pins.)
0
0
0
D7
Figure 22. Byte Structure at Reset Command
Table 6. Setup Command Register Format
S
T
A
R
T
S
Slave
Address
0
0
0
Figure 21. The Second Byte
D6
0
Figure 20. The First Byte
R/W= “0”
SLEEP1
1
0
0
D5
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Sub
Address
0
0
0
SLEEP0
D4
Reset
Command
0
0
0
D3
0
CAD0
S
T
O
P
P
0
0
■
D2
0
Power-up Sequence
R/W
0
1
D1
0
[AK4186]
PD0
D0
2011/03
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