W523AXXX

Publication Release Date: May 20, 2003

- 5 -

Revision A3

5. FUNCTIONAL DESCRIPTION

I/O pins:

The W523Axxx family provides up to 4 trigger pins, which can be extended to 24 matrix trigger inputs,

up to 5 STOP output pins and up to 2 LED output pins. All of these I/O pins’ status can be easily

defined by PowerSpeech

 program.

Powerful programmable features:

The W523Axxx family provides JUMP (JP), LOAD (LD), MOVE (MV), INC, and END commands and

10 programmable registers, such as R0 ~ R3, EN0, EN1, MODE0, MODE1, STOP and PAGE, can be

easily used to program the desired playing mode, stop output signal form, LED flash type, and trigger

pin interrupt modes. The chip’s programmable features can also be used to develop new, customized

functions for a wide variety of innovative applications.

Programmable Power-on Initialization:

32

program into this group to set the power-on initial state. If user does not wish to execute a program at

power-on, an “END” instruction should be entered in the group 32.

The interruption priority is shown as below while other trigger pins as well as JUMP (JP) command are

executing simultaneously during POI executing period:

POI > TG1F > TG1R > TG2F > TG2R > *TG5F > *TG5R > *TG6F > *TG6R > "JP" instruction.

*: TG3, TG4 for W523A008, W523A010

5.1 Register Definition and Control

The register file in the W523Axxx family is composed of 10 registers, including 4 general-purpose

registers and 6 special purpose registers. They are defined to facilitate the operations for various

purposes. The default setting values of the registers are given in the following table.

REGISTER

NAME

DEFAULT SETTING

General Register

R0-R3

00100000B

EN0 (W523A008~A010)

11111111B

EN0 (W523A012~A120)

XX11XX11B

EN1 (W523A012~A120)

XX11XX11B

MODE0, MODE1

11111111B

STOP

XXX11111B

Special Register

PAGE

00000000B