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參數(shù)資料
| 型號(hào)： | AK4180VT |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Touch Screen Controller |
| 中文描述： | 觸摸屏控制器 |
| 文件頁(yè)數(shù)： | 11/17頁(yè) |
| 文件大?。?/td> | 140K |
| 代理商： | AK4180VT |
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[ASAHI KASEI]
[AK4180]
<MS0195-E-01>
2003/02
11
Control Command
The control command, 8 bits, provided to the AK4180 via DIN is shown in the following table. This command includes start bit,
analog input, resolution, measurement configuration, and power-down mode. The AK4180 latches the serial command at the
rising edge of DCLK.
D7
D6
D5
D4
S
A2
A1
A0
D3
D2
D1
PD1
D0
PD0
MODE
SER/ DFR
BIT
7
6-4
Name
S
A2-A0
Function
Start Bit. This bit must be “H” because the AK4180 initiates the command recognition
Channel Selection Bits. Analog inputs to the A/D converter and the activated driver switches are
selected. Please see the following table for the detail.
Resolution of A/D converter. ”L”: 12 bit output “H”: 8 bit output
Measurement Mode (Single-Ended/Differential)
3
2
MODE
SER/ DFR
3
PD1-PD0
Power-down Mode (reference to “
Power-down Control”
)
Control Command
Status of Driver Switch
ADC input (
AIN)
Reference Voltage
(
VREF)
VREF+
A2
A1
A0
SER/
DFR
XP
XN
YP
YN
AIN+
AIN-
VREF-
Note
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
TEMP0
XP
VBAT
XP(Z1)
YN(Z2)
YP
IN1
TEMP1
XP
XP(Z1)
YN(Z2)
YP
IN2
GND
GND
GND
GND
GND
GND
GND
GND
YN
XN
XN
XN
GND
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
YP
YP
YP
XP
VREF
GND
GND
GND
GND
GND
GND
GND
GND
YN
XN
XN
XN
GND
TEMP0
Y-axis
Battery Monitor
Z1 (Pen Pressure)
Z2 (Pen Pressure)
X-axis
IN1
TEMP1
NA
Y-axis
NA
Z1 (Pen Pressure)
Z2 (Pen Pressure)
IN1
TEMP1
NA
*) Note that IN2 auxiliary input is measured by single-ended mode although SER/ DFR bit is ”0”.
Table 2 Control Command List
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