AG Neovo TSC-40/IC manual Initial setting, Eeprom setting, Touch screen mode setting

TSC-40/IC Product Specification

4. Initial setting

4-1. EEPROM setting

Depending on that calibration is performed in either TSC-40/IC or host, you can select whether EEPROM is used or not to store the correction data. EEPROM selection can be set via pin number 16, where hardware reset release enables the setting.

(TSC-40/IC)

SEL4/EEP-CS

VCC

H= Not used

L= Used

(EEPROM)

CS

4-2. Touch screen mode setting

Touch screen mode setting for 4-wire/5-wire is performed by setting pin number 15 to “H” or “L”. When power supply is turned on, or hardware reset is released, pin number 15 is read to turn on in either 4-wire/5-wire mode.

Mode	Pin number 15
4-wire touch screen	GND
5-wire touch screen	Vcc

4-3. Power supply voltage setting

Power supply mode setting for 3.3V/5V is performed by setting pin number 25 to “H” or “L”. When power supply is turned on, or hardware reset is released, pin number 25 is read to turn on in either 3.3V mode/5V mode.

Power supply voltage	Mode	Pin number 25
3.3 to 4.0V	3.3V mode	Vcc
4.0 to 5.5V	5V mode	GND

*When you operate it with 3.3V mode, the inside frequency of CPU works at 3MHz, and the sampling rate is 80pps max in calibration data mode.

Document No. DER-S0026A 7 Version 1.2 ©2008 DMC Co., Ltd.