DMC42C4008.PDF

4Bit Single Chip Microcontroller

DMC42C3008

DESCRIPTION

The DMC42C3008 is a 4-bit single chip microcomputer having

8K bytes ROM and is designed with CMOS silicon gate technology.

The DMC42C3008 includes such peripherals as various timers,

A/D converter, serial communication interface,on-chip oscillator

and clock circuitry. It also comes with high-voltage I/O pins

that can directly drive a fluorescent display.

The high performance CPU and internal peripherals allow flexible & cost

effective system design in industrial and home appliances.

AND the OTP device (42P3008) can shorten system development periods

and help the process for software debugging.

PIN CONFIGURATION

PC3 / TOC

disp

P10 / SCK

P11 / SI

P12 / SO

PC2

RESETB

/ AV

TEST

PA0 / AD0

PA1 / AD1

PA2 / AD2

PA3 / AD3

PB0 / AD4

PB1 / AD5

PB2 / AD6

PB3 / AD7

P00 / INT0

P01 / INT1

P02 / INT2 / TI2

P13 / BUZ

P03 / INT3

P20 / CLO

P21

P22

P23

P60

P61

P62

P63

P40

P41

P42

P43

P50

P51

P52

P53

4Bit Single Chip Microcontroller

DMC42C3008

FEATURES

Memory mapped I/O

PWM

- 14 bit PWM output X 1ch

Program memory : 8192 x 10bits

8-bit serial communication interface

Data memory : 512 x 4bits

- External / Internal clock selection

- Mode : Transmit, Receive

Instructions

Receive only

- Various bit manipulation

Clock continuous

- 8-bit data operation

- 7-bit relative branch

8-bit A/D converter

- 1 byte absolute call

- 8-bit successive approximate type

- 8 channels

Instruction cycle times

- Sample and hold

- Main ( XI = 4.19MHz )

- Conversion time : 17.1us at 4.19MHz

. 15.3 us ( XI/64 = 65.5KHz )

. 1.91 us ( XI/8 = 524.0KHz )

34 I/O Pins

. 0.95 us ( XI/4 = 1.05MHz )

- CMOS Pins : 13

- High voltage Pins : 21

4 Register Bank

- Internal pull-up resistor ( Mask option )

- Internal pull-down resistor ( Mask option )

General register : 8 x 4-bit respectively

Power saving mode

Accumulator

- STOP : Main clock, CPU clock stop

- Bit Accumulator (CY), 4 bit Accumulator (A), - STBY : Only CPU clock stop

8 bit Accumulator (XA)

Main clock operation

Multiple vectored interrupt source

Operating voltage range

- External interrupt : 4

- VDD = 5V ± 10%

- Internal interrupt : 6

- V

disp

= VDD - 40V

Watch timer(at 4.19MHz)

Package : 42 SDIP

- fast mode : 3.91 msec

- normal mode : 0.5 sec

APPLICATION

- buzzer output : 1, 2, 4 KHz

Microwave Oven, Home Appliances

Basic interval timer

- 8 kinds of period

- Used stabilization wait timer to wake up

Stop mode

One 8-bit timer / event counter

Watchdog timer

- 4 kinds of period

4Bit Single Chip Microcontroller

DMC42C3008

P00

¡-

P03

P10

¡-

P13

P20

¡-

P23

P40

¡-

P43

P50

¡-

P53

P60

¡-

P63

PA0

¡-

PA3

PB0

¡-

PB3

PC2

¡-

PC3

TOC / PC3

IRQTC 2

BLOCK DIAGRAM

DMC42CORE

BASIC

INTERVAL

TIMER

RQBT

WATCH

TIMER

IRQWT

TIMER/EVENT

COUNTER 2

SERIAL

INTERFACE

IRQS0

INTERRUPT

CONTROL

8-BIT ADC

IRQAD

BUZ / P13

TI2 / P02

SCK / P10

SI / P11

SO / P12

INT3 / P03

PA0~PA3,

PB0~PB3/

AD0-AD7

PORT0

PORT1

PORT2

PORT4

PORT5

PORT6

PORTA

PORTB

PORTC

PROGRAM MEMORY

(8192 X 10BITS)

DATA MEMORY

(512 X 4BITS)

Fx / 2

CPU

CLOCK

P20 / CLO

RESETB

TEST

CLOCK

OUTPUT

CONTRO

CLOCK

DIVIDER

CLOCK

GENERATOR

STOP/

IDLE

CONTROL

WATCHDOG

TIMER

PULSE WIDTH

MODULATION

INT2 / P02

INT1 / P01

INT0 / P00

4Bit Single Chip Microcontroller

DMC42C3008

PROGRAM MEMORY (ROM)

VECTOR ADDRESS

CONTENTS

Prioty

INTERRUPT SUORCE

0000H

VECTOR

0000H

RESET

Reset Signal

ADDRESS AREA

0002H

IRQBT

Basic Interval Timer

001FH

0004H

IRQ0

External interrupt 0

0020H

ZERO-PAGE

0006H

IRQ1

External interrupt 1

CALL AREA

0008H

002FH

000AH

0060H

000CH

IRQ2

External interrupt 2

000EH

IRQTC2

Timer Event Counter 2

0010H

IRQ3

External interrupt 3

0012H

IRQS0

Serial I/O 0

0014H

IRQAD

8 bit ADC

8K Byte

0016H

0018H

IRQWT

Watch Timer

001AH

IRQKS

Key Scan

001CH

1FFFH

001EH

reserved

DATA MEMORY (RAM)

DIRECT

INDIRECT

STACK

GENERAL

@HL

@DE @DL

$00

RB=0

RB=1

PAGE0

RB=2

RB=4

(256 Byte)

MP=0

SPS=0

$FF

$00

PAGE1

(256 Byte)

MB=0

MP=1

SPS=1

BANK 0 $FF

(1K)

$00

PAGE2

(256 Byte)

MP=2

SPS=2

$FF

$00

PAGE3

I/O

(256 Byte)

MEMORY

MP=3

; Usable

$FF

4Bit Single Chip Microcontroller

DMC42C3008

I/O ADDRESS MAP

ADDRESS

Hardware Module Name

R/W

Addressing Unit

REMARKS

INITIAL

1 bit

4 bit

8bit

VALUE

318H

Stack pointer low (SPL)

R/W

Stack pointer low

319H

Stack pointer high (SPH)

R/W

stack pointer high

31AH

SP3

SP2

SP1

SP0

R/W

Stack Page Select Low (SPSL)

31BH

SP5

SP4

R/W

Stack Page Select High (SPSh)

31CH

IS1

IS0

R/W

Psw low (PSWL)

31DH

Psw high (PSWH)

32CH

T/E counter mode register 2

32CH.3

clock source select. counter

32DH

(TMOD2)

start (ch2)

32EH

T/E counter register 2

readable count value (ch2)

32FH

(TMCNT2)

330H

T/E reference register 2

count reference register (ch2)

331H

(TMREF2)

332H

Basic Timer mode register(BMOD)

R/W 332H.3

clock select, Bit start

334H

Basic interval timer count

readable count register

335H

336H

Watch timer mode register

R/W 336H.3

clock/buzzer select. bit3

337H

(WMOD)

readable

338H

Watch dog timer mode register

clock source sel. timer EN/DIS

(WDTM)

339H

WDTF

WDT flag

340H

Pwm mode register0(PWMOD0)

R/W

6.14bit pwm counter EN/DIS

342H

Pwm0 data register high

14bit pwm data register high

343H

(PWMODH)

344H

Pwm0 data register low

14bit pwm data register low

345H

(PWMODL)

354H

PWM3

PWM2

PWM1

PWM0

pwm output enable mode

355H

PWM6

PWM5

PWM4

386H

Adc8 mode register (ADCM8)

R/W 386H.3

analog input pin select. start &

387H

low 4bit readable

388H

Adc8 output latch (ADCOL8)

8bit conversion data

389H

3A0H

Power control register

system clock select, idle, stop

(PCON)

R/W

mode

3A2H

Operating mode register (SCMOD)

R/W

main/sub system clock select

3A4H

Clock output mode register

cpu clock output select, clock

(CLOMD)

out EN/DIS

3A8H

Serial interface mode register0

3A8H.3

receive/transmit mode. clock

3A9H

(SIOM0)

select

3AAH

Serial interface buffer0

R/W

serial shift register 0

3ABH

(SBUFF0)

3B2H

Power on flag (PONF)

P/W 3B2H.0

power on reset flag

3C2H

IME

R/W 3C2H.3

Interrupt priorty select, IME flag.

3C3H

IPSR3

IPSR2

IPSR1

IPSR0

4Bit Single Chip Microcontroller

DMC42C3008

ADDRESS

Hardware Module Name

R/W

Addressing Unit

REMARKS

INITIAL

1 bit

4 bit

8bit

VALUE

3C4H

External interrupt mode register0

external interrupt 0 edge

(IMOD0)

detection

3C5H

External interrupt mode register1

external interrupt 1 edge

(IMOD1)

detection

3C6H

External interrupt mode register2

external interrupt 2 edge

(IMOD2)

detection

3C7H

External interrupt mode register3

external interrupt 3 edge

(IMOD3)

detection

3D8H

IE2

IRQ2

IEBT

IRQBT

R/W

Interrupt EN/IRQ flag

3D9H

IEAD8

IRQAD8 IEWT

IRQWT

R/W

Interrupt EN/IRQ flag

3DAH

IES0

IRQS0

R/W

Interrupt EN/IRQ flag

3DBH

R/W

Interrupt EN/IRQ flag

3DCH

IE1

IRQ1

IE0

IRQ0

R/W

Interrupt EN/IRQ flag

3DDH

IETC2

IRQTC2

R/W

Interrupt EN/IRQ flag

3DEH

IE3

IRQ3

R/W

Interrupt EN/IRQ flag

3E0H

PW03

PW02

PW01

PW00

port 0, 1 mode register (PMGA)

3E1H

PW13

PW12

PW11

PW10

3E2H

PW23

PW22

PW21

PW20

port 2, 3 mode register (PMGB)

3E3H

PW33

PW32

PW31

PW30

3E4H

PW43

PW42

PW41

PW40

port 4, 5 mode register (PMGC)

3E5H

PW53

PW52

PW51

PW50

3E6H

PW63

PW62

PW61

PW60

port 6, 7 mode register (PMGD)

3E7H

PW73

PW72

PW71

PW70

3EAH

PWA3

PWA2

PWA1

PWA0

port a, b mode register (PMGF)

3EBH

PWB3

PWB2

PWB1

PWB0

3ECH

PWC3

PWC2

PWC1

PWC0

port c, d mode register (PMGG)

3EDH

PWD3

PWD2

PWD1

PWD0

3F0H

PORT0 (R0)

R/W

R0 Port Data Register

3F1H

PORT1 (R1)

R/W

R1 Port Data Register

3F2H

PORT2 (R2)

R/W

R2 Port Data Register

3F4H

PORT4 (R4)

R/W

R4 Port Data Register

3F5H

PORT5 (R5)

R/W

R5 Port Data Register

3F6H

PORT6 (R6)

R/W

R6 Port Data Register

3FAH

PORTA (RA)

R/W

RA Port Data Register

3FBH

PORTB (RB)

R/W

RB Port Data Register

3FCH

PORTC (RC)

R/W

RC Port Data Register

4Bit Single Chip Microcontroller

DMC42C3008

PIN DESCRIPTION

PIN

SHARED

I/O

FUNCTION

RESET

PORT

SYMBOL

PIN

TYPE

P00

INT0

P01

INT1

I/O

4-BIT I/O HIGH VOLTAGE PORT

BHPS

P02

INT2/TI2

PORT 0

P03

INT3

P10

SCK

P11

I/O

4-BIT I/O PORT

P12

PORT 1

P13

BUZ

( P13 HIGH VOLTAGE PIN )

BHP

P20

CLO

I/O

4-BIT I/O HIGH VOLTAGE PORT

BHP

P21~ P23

PORT 2

4-BIT I/O HIGH VOLTAGE PORT. PORT4

BHP

4-BIT I/O HIGH VOLTAGE PORT. PORT5

BHP

4-BIT I/O HIGH VOLTAGE PORT. PORT6

BHP-PDND

AD0~AD3

4-BIT I/O PORT. PORTA

AD4~AD7

4-BIT I/O PORT. PORTB

PC2

2-BIT I/O PORT. PORTC

PC3

TOC

INT0

P00

External interrupt input port

INPUT

INT1

P01

rising/falling edge detection

BHPS

INT2/TI2

P02

Event pulse input port for the

INT3

P03

timer/event counters

SCK

P10

I/O

Serial clock in/out port

P11

Serial data input port

P12

Serial data output port

BUZ

P13

Buzzer output port

BHP

CLO

P20

Clock output port

BHP

TOC

PC3

PWM output port

Key scan

P4-P5

4, 6, 8 bits Key scan input selectable

BHP

AD0~AD3

Analog input for the 8-bit A/D converter

AD4~AD7

XI, XO are the input and output, resp-

ectively, of an inverting amplifier. The pins

can be configured for use as an on-chip

oscillator.

RESETB

Reset input pin

BIN

TEST

Normally connect to VSS

BIN

disp

Used as a high-voltage output power

supply pin.

AVDD, AVSS

Power & ground for the A/D converter

VDD, VSS

Power & ground

* Note ) P4, P5 : 8-bit operation possible

BIN

BOU