Preliminary W583XXX

Publication Release Date: March 1999

- 7 -

Revision A1

4. EN0, EN1 Registers

BIT

76

54

32

10

EN0

TG4R

TG3R

TG2R

TG1R

TG4F

TG3F

TG2F

TG1F

EN1

TG8R

TG7R

TG6R

TG5R

TG8F

TG7F

TG6F

TG5F

A "1" means "enabled", while a "0" means "disabled" for that edge of the particular TG pin. For

example, the instruction "LD EN0, 0x0F" enables all the falling edge triggers of TG1-TG4, while

disabling all the rising edge triggers of TG1-TG4. The user can modify the EN0 and EN1 registers

during operation of the W583xxx to achieve various kinds of trigger functions, like retriggerable or

not, one shot or level hold play mode, etc.

That is to say, users can change the contents of EN0, EN1 register during synthesis at will to

determine which trigger pin is to be enabled or disabled for its falling/rising edge.

EN1 register is not provided in W583S10.

5. STOP Register

BIT

7

65432

10

STOP

STH

STG

STF

STE

STD

STC

STB

STA

The STOP register is used to control the status of the STPA-STPH pins. For example STB bit, the

corresponding bit 1 of the STOP register is used to drive the output buffer of STPB pin, an inverted

stage, to show its logic status. Notes that bits 5-7 of STOP register are reserved in W583S10.

6. R0-R7 Registers

These eight registers function as general purpose registers. They can be used to hold interrupt

vector/label. R0 is a special register which can be incremented by "INC" instruction.

Option Control Function

There are four types of option control in W583xxx. They can be determined by a declaration in the

user

′s program file, but can not be controlled by register.

FUNCTION

MASK OPTION

DECLARATION

DEFINITION

DEFPAGE 1

256 interrupt vector/label for 1 page, 1 page in total (1-page mode)

Page Mode

DEFPAGE 8

256 interrupt vector/label for 1 page, 8 pages in total (8-page mode)

Configuration

DEFPAGE 16

128 interrupt vector/label for 1 page, 16 pages in total (16-page mode)

DEFPAGE 32

64 interrupt vector/label for 1 page, 32 pages in total (32-page mode)

Operation

NORMAL

Normal mode operation

Mode

CPU

CPU mode operation

Oscillator

OSC_3MHz

3 MHz oscillator

Frequency

OSC_1.5MHz

1.5 MHz oscillator

Voice

VOUT_DAC

DAC (AUD) output

Output Type

VOUT_PWM

PWM output