參數(shù)資料
型號: TSC2200
英文描述: PDA ANALOG INTERFACE CIRCUIT
中文描述: 掌上電腦模擬接口電路
文件頁數(shù): 28/40頁
文件大小: 645K
代理商: TSC2200
28
www.ti.com
TSC2200
SBAS191F
FIGURE 16. Y-Coordinate Reading Controlled by Host.
Screen
Touch
Issue Interrupt
PENIRQ
Go to Host-Controlled
Conversion
Host-Controlled
Y-Coordinate
No
Start Clock
Reset PENIRQ
No
Is Panel Voltage
Stabilization Done
Turn On Drivers: X+, X
Turn On Drivers: X+, X
No
Yes
Yes
Yes
No
Is Data
Averaging Done
Convert Y-Coordinate
Start Clock
Power Up A/D Converter
Is PSM = 1
Are Drivers On
Done
Done
Host Writes A/D
Converter
Control Register
Host Writes A/D
Converter
Control Register
Done
Power Down A/D Converter
Turn Off Clock
Issue Data Available
Store Y-Coordinates
in Y-Register
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