W523AXXX

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5.1.1 MODE0 Register

BIT

DESCRIPTION

DEFINITION

1: Flash

7

LED mode

0: DC

1: LED2 output

6

LED2/STPC

pin selection

0: STPC output

1: Long

4

Debounce time

0: Short

1: STPA output

2

STPA/BUSY

pin selection

0: BUSY output

5,3,1,0

X

Don’t care

The MODE0.7 bit defines the output type of LED1 and LED2 pins as Flash output (3 Hz) or DC output.

The MODE0.6 bit defines the configuration of LED2/STPC pin’s status as LED2 output or STPC

output. The MODE0.4 bit defines the trigger pin’s debounce time as long debounce (50 mS) or short

debounce (400 uS). The MODE0.2 bit defines the behavior of the STPA/BUSY pin as STPA output in

normal mode or BUSY signal output in CPU mode. The bits 5, 3, 1 and 0 are don’t care bits.

5.1.2 MODE1 Register

BIT

DESCRIPTION

DEFINITION

7, 6, 1, 0

X

Don’t care

1: Alternate

5

LED Flash type

0: Synchronous

1: YES

4

LED1 section

control

0: NO

1: SECTION control

3

LED2 control

0: STPC control

1: OFF

2

LED1 volume

control

0: ON

MODE1.5 is for LED flash type control. MODE1.4 is for LED1 section control ON/OFF. MODE1.3 is for

LED2 Section/STPC control. MODE1.2 is for LED1 volume control.