EM78P568

8-bit OTP Micro-controller

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* This specification are subject to be changed without notice.

16

01/31/2004

V4.7

PAGE1 (DAC input data register)

7

6

5

4

3

2

1

0

DA7

DA6

DA5

DA4

DA3

DA2

DA1

DA0

R/W-1

R/W-1

R/W-1

R/W-1

R/W-1

R/W-1

R/W-1

R/W-1

Bit 0 ~ Bit 7 (DA0 to DA7) : DA converter data buffer

PAGE2 (LCD waveform option, Multiplication control)

7

6

5

4

3

2

1

0

LCDOPT

-

-

-

-

-

-

-

R/W-0

Bit 0 ~ Bit 6 : (undefined) not allowed to use

Bit 7 (LCDOPT) : LCD output waveform option

0

default LCD waveform for Type0 LCD waveform

1

switch over LCD bias V1 and V2 for segment for Type1 LCD waveform

(Please set this bit to “1” to get better display performance while LCD driver is used)

RB (PORTB I/O data, ADC output data buffer)

PAGE0 (PORT9 I/O data register)

7

6

5

4

3

2

1

0

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Bit 0 ~ Bit 7 (PB0 ~ PB7) : 8-bit PORTB(0~7) I/O data register

User can use IOC register to define input or output each bit.

RC (PORTC I/O data, Counter1 data)

PAGE0 (PORT9 I/O data register)

7

6

5

4

3

2

1

0

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Bit 0 ~ Bit 7 (PC0 ~ PC7) : 8-bit PORTC(0~7) I/O data register

User can use IOC register to define input or output each bit.

PAGE1 (Counter1 data register)

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

CN17

CN16

CN15

CN14

CN13

CN12

CN11

CN10

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

Bit 0 ~ Bit 7 (CN10 ~ CN17) : Counter1's buffer that user can read and write.

Counter1 is a 8-bit up-counter with 8-bit prescaler that user can use RC PAGE1 to preset and read the

counter.(write

preset)

After a interruption , it will reload the preset value.

Example for writing :

MOV

0x0C, A

; write the data at accumulator to counter1 (preset)

Example for reading :

MOV

A, 0x0C

; read the data at counter1 to accumulator

RD (LCD control, Counter2 data, PWM1,2 duty latch, Multiplication result)

PAGE0 (LCD driver control bits)

7

6

5

4

3

2

1

0

DETOED

-

-

-

-

LCD_C1 LCD_C0

LCD_M

R/W-0

R/W-0

R/W-0

R/W-0

Bit 0 (LCD_M) : LCD operation method including duty and frame frequency