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參數(shù)資料
| 型號： | AK4182AVN |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Touch Screen Controller |
| 中文描述： | 觸摸屏控制器 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 186K |
| 代理商： | AK4182AVN |
ASAHI KASEI
[AK4182A]
Serial Interface
The AK4182A is controlled via 4-wire serial interface, CSN, DCLK, DIN, DOUT.
Please see “
Switching Characteristics
” for the detail.
CSN
1
2
3
4
5
MS0482-E-00
2006/03
13
SER/
DFR
BUSY
DOUT
S
A2
A0
A1
MO
PD1
PD0
SER/
DFR
DCLK
DIN
11
9
8
7
6
5
4
3
2
1
0
10
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Touch Screen Driver SW
(SER/ DFR = ”1”, PD0 = ”0” )
Touch Screen Driver
(SER/ DFR = ”0”, PD0 = ”0” )
S
A2
A0
A1
MO
PD1
PD0
11
Hi-Z
Hi-Z
10
Figure 7 Serial Interface
BUSY and DOUT goes to “L” from Hi-Z state at the falling edge of CSN. The AK4182A latches the 8bit control word serially via
DIN at the rising edge of DCLK. As the AK4182A starts the command decoding at the first “H” bit after CSN= “
↓
”, MSB (S bit)
of the command must be “H”.
Tracking time is the period from the falling edge of 5th DCLK to the falling edge of 8th DCLK. If SER/ DFR = “1”, PD0= “0”,
and if analog input is X-axis or Y-axis (the measurement is the pen position or pen pressure), the touch screen driver switches are
turned ON for this 3DCLK period. If SER/ DFR = “0”, the switches are turned ON for the period from 5DCLK
↓
to 20 DCLK
↓
.
BUSY is “H” for one DCLK period, which is from 8DCLK
↓
to 9DCLK
↓
. BUSY is “L” for other period.
The AK4182A outputs A/D data with MSB first via DOUT from the falling edge of 9th DCLK.
DIN must keep low state for minimum 7 DCLK times (9th-15th DCLK) after command is sent on the DIN.
The AK4182A can output one A/D data per 15 DCLK clock cycles for the fastest way as shown in the dotted line of the Figure 7.
相關PDF資料 |
PDF描述 |
|---|---|
| AK4182 | Touch Screen Controller |
| AK4182VN | Touch Screen Controller |
| AK4183 | I2C Touch Screen Controller |
| AK4183VT | I2C Touch Screen Controller |
| AK4184 | TSC with Keypad Scanner and GPIO Expander |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4182VN | 制造商:AKM 制造商全稱:AKM 功能描述:Touch Screen Controller |
| AK4183 | 制造商:AKM 制造商全稱:AKM 功能描述:I2C Touch Screen Controller |
| AK4183_08 | 制造商:AKM 制造商全稱:AKM 功能描述:I2C Touch Screen Controller |
| AK4183KT | 制造商:AKM 制造商全稱:AKM 功能描述:I2C Touch Screen Controller |
| AK4183VT | 制造商:AKM 制造商全稱:AKM 功能描述:I2C Touch Screen Controller |
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