[AKD4184A-A]

Evaluation mode

Applicable Evaluation Mode

(1)

Touch-position and touch-pressure measurement.

(2)

Keypad scan function.

(3)

GPIO control function.

(4)

LED dimmer control function.

(1) Touch-position and touch-pressure measurement.

In case of evaluating a Touch Screen function of the AK4184A, it is necessary to connect the Touch Panel with

J1 terminal as shown Table 1. Regarding pin assignment of J1, refer to Table 1 or circuit diagram in this

manual. As for the AK4184A’s register definitions, refer to datasheet of the AK4184A.

4-wire resistive touch screen should be connected to J1.

The pin assignment of J1 is shown on Table 2.

No.

Name

Description

1

2

YN

Touch Screen Y – plate Voltage supply

3

4

YP

Touch Screen Y + plate Voltage supply

5

6

XN

Touch Screen X – plate Voltage supply

7

8

XP

Touch Screen X + plate Voltage supply

Table 2. J1 (8P Header) pin assign

Set up the jumper pins.

JP5

XP_SEL

TSC

AIN

JP7

XN_SEL

TSC

ＧＮＤ

JP6

YP_SEL

TSC

AIN

JP8

YN_SEL

TSC

GND

AIN

The AK4184A’s register (Touch Screen Register) should be set to Touch Screen Operation.

<KM093500>

2008/03

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