GPES203B

© Generalplus Technology Inc.

Proprietary & Confidential

5

JAN. 05, 2009

Version: 1.1

5.FUNCTIONAL DESCRIPTIONS

5.1. Instruction Sets

Twelve instructions are LD, JP, LSR, ADD, SUB, AND, ORR,

EOR, END, IRSend, RxEnable, and RxDisable.

“LD” means

LOAD and “JP” indicates JUMP.

“LSR” shifts a register’s

content one bit to the right.

“ADD” and “SUB” are addition and

subtraction.

“AND”, “ORR” and “EOR” are logical operations

which mean AND, OR and, Exclusive OR respectively.

“END”

ends program and enters into sleep mode for power saving

purpose.

The IRSend, RxEnable and RxDisable are three

commands for IR functions.

For more information on how to

apply these commands, please refer to GPES II Programming

Guide.

5.2. I/O Description

GPES II small series has the following I/O pins: TG1, TG2, TG3,

and TG4.

All these pins are programmable and TG3, TG4 can

be shared with LED drive pins.

PIN

Configuration

TG1

I/O

TG2

I/O

TG3

I/O (shared with LED pin)

TG4

I/O (shared with LED pin)

5.3. Program Structure Overview

As mentioned above, the GPES II program structure is very

simple. The following description is an overview of GPES II

program structure.

For more information about GPES II

programming style, please refer to GPES II Programming Guide.

5.3.1. Definition area

The beginning of a program is the Definition Area that defines

many declarations before Initialization, e.g. IC body, variable,

frequency, debounce time and low voltage reset option.

5.3.1.1. IC body

The first element defined in a program is a GPES II body.

Example:

SPES203B

;select SPES203B

EXT_CLK_4M

Freq4

;Set default speech

;sample frequency to 7.8K

...

POI:

...

...

5.3.1.2. Debounce

A key debounce time can be defined in Definition Area.

The

range of debounce time is 5ms - 35ms.

5.3.1.3. Variable

A variable can be defined by adding a “#define” in front of a

variable.

A variable can be the combination of numbers and

characters, but not underscore.

Variable Syntax:

#define

VariableName

<Register | NUM>

Example1:

#define var

R0

;define var as R0

Example2:

#define const 8

;define const as 8

5.3.1.4. External clock

Users can define one external clock out of the following

selections in a program.

This option must be defined in

definition area.

EXT_CLK_3M; (3.0MHz)

EXT_CLK_4M; (4.0MHz)

EXT_CLK_6M; (6.0MHz)

5.3.1.5. Infrared Red (IR) Function

Some IR parameters must be defined in Definition Area before

using IR function.

We will only introduce the commands here.

For more details on how to use these commands in your program,

please refer to GPES II Programming Guide.

1). IR_ID NUM; where NUM = 0, 1, 2 or 3

Setup an IR ID.

When IR_ID is given, the IR receiver

module will be automatically included in the program.

2). SetRxPin NUM

Setup the IR receive pin.

; Where NUM = 0, 1, 2, or 3; default = 3 (TG4)

3). SetTxPin NUM

Setup the IR transmitter pin.

; Where NUM = 0, 1, 2, or 3; default = 2 (TG3) for small body

4). SetRxPowerPin NUM

Setup IR receiver power control pin

; Where NUM = 0, 1, 2, or 3 for small body.