[AKD4184A-A]

Set up the jumper pins.

JP9

GP0

IN

OUT

JP10

GP1

JP11

GP2

JP12

GP3

JP13

GP4

JP14

GP5

JP15

GP6

JP16

GP7

The AK4184A’s register (GPIO Pin Direction Register) should be set GPIO pins as input.

Select “L” or “H” on S1, the AK4184A’s register should be read from the Pin Level Register. The pin state is

detected.

(3-2) GPIO pin as output port

AKD4184A evaluates GPIO control function with LED (GP0~GP7).

Set up the jumper pins.

JP9

GP0

IN

OUT

JP10

GP1

JP11

GP2

JP12

GP3

JP13

GP4

JP14

GP5

JP15

GP6

JP16

GP7

JP20

PULL_UP

(Open)

JP19

LED_EN

(Open)

The AK4184A’s register (GPIO Pin Direction Register) should be set GPIO pins as output.

The AK4184A’s register (GPIO Pin Set/Clear Register) should be set pin level to “H”. Therefore, LED

(GP0~GP7) turns on.

(4) LED dimmer control function.

AKD4184A evaluates LED dimmer control on LED9 and LED10.

Set up the jumper pin.

JP18

PWM

(Short)

The AK4184A’s register (PWM Control Register) should be set to power up.

The AK4184A’s register should be changed by Bright Control Value. Therefore, LED9 and LED10 dimmer is

controlled.

<KM093500>

2008/03

- 6 -