Version History

Specification Revision History

Version Content

eFH5830AD

1.0 Initial

version

1.1

Add 17.91MHz main CLK

1.2

ADD eFHP5830D, eFHP5830AD, and eFHP5830BD package

1.3

ADD the description about ADC's offset voltage

1.4

Modify stack level from 16 to 12
Modify program ROM size from 4K to 16K
Rename "eFH5830D" to eFH5830AD
Remove IDLE mode
Remove 17.9MHz main CLK

1.5

Rename from eFH5830AD to EM785830AD

Relative to EM785830AD's ROM-less, OTP and mask:

ROM-less OTP

Mask

EM78P5830D

ICE5830

EM78P5830AD

EM785830AD

Difference between EM785830AD/EM78P5830D/EM78P5830AD

Some differences are betweenEM785830AD, EM78P5830D and EM78P5830AD, these differences are list at next

table:

EM78P5830D

EM78P5830AD

EM785830AD

ADIS

(code option bit9)

Un-effect Un-effect Must

VERSEL

(code option bit10)

Un-effect

Must = 0

PHO

(code option bit11)

Un-effect

Must = 0

(

IOCC page1

bit0)

Must = 1

Un-effect

Stack number

16 16 12

EM785830AD

8-bit Micro-controller

__________________________________________________________________________________________________________________________________________________________________

* This specification is subject to be changed without notice.

12/14/2004 (V1.4)

User Application Note

(Before using this chip, take a look at the following description note, it includes important messages.)

1. There are some undefined bits in the registers. The values in these bits are unpredicted. These

bits are not allowed to use. We use the symbol "-" in the spec to recognize them. A fixed value
must be write in some specific unused bits by software or some unpredicted wrong will occur

These bits are as below:

PAGE

Bit

Default value Initial Setting value

(by user software)

Effect

RAM access will error

RA 2 7 X

Un-expect

error

5~6

Power consumption increase

RE 0 1~3 0

Un-expect

error

IOC6 1 7

LCD

display

error

IOC8

1~7

Power consumption increase

IOC8

1~7

Power consumption increase

IOCA

3,6

Power consumption increase

IOCB

0~7

Power consumption increase

IOCC

4~7

Power consumption increase

IOCC 1 0

AD function will error

IOCC 1 3~7 X

Un-expect error

IOCE 0 0~3 0

Un-expect

error

IOCF 0 6~7 0

Un-expect

error

2. You will see some names for the register bits definitions. Some name will be appear very

frequently in the whole spec. The following describes the meaning for the register's definitions
such as bit type, bit name, bit number and so on.

RAB7

RAB6

BAB5

RAB4

RAB2

RAB0

R/W -0

R-1

R/W -1

R/W

Bit type

Bit name

Bit number

read/write

(default value=0)

read/write

(default value=1)

read only

(w/o default value)

read/write

(w/o default value)

PAGE0

RAB1

(undefined) not allowed to use

R-0

read only

(default value=0)

read only

(default value=1)

3. Always set IOCC PAGE1 bit 0 = 1 otherwise partial ADC function cannot be used.
4. Please do not switch MCU operation mode from normal mode to sleep mode directly. Before into

sleep mode, please switch MCU to green mode.

5. While switching main clock (regardless of high freq to low freq or on the other hand), adding 6

instructions delay (NOP) is required.

Offset voltage will effect ADC

s result, please refer to figure 20 to detail.

EM785830AD

8-bit Micro-controller

__________________________________________________________________________________________________________________________________________________________________

* This specification is subject to be changed without notice.

12/14/2004 (V1.4)

I. General Description

The EM785830AD is an 8-bit RISC type microprocessor with low power, high speed CMOS technology. There

are 16Kx13 bits Memory within it. This integrated single chip has an on_chip watchdog timer (WDT), program ROM,
data RAM, LCD driver, programmable real time clock/counter, internal interrupt, power down mode, built-in three-wire
SPI, dual PWM(Pulse Width Modulation), 6-channel 10-bit A/D converter and tri-state I/O.

II. Feature

CPU

�

Operating voltage : 2.2V~5.5V at main CLK less then 3.58MHz.

Main CLK(Hz)

Under 3.58M

7.16M

10.74M

14.3M

Operating Voltage(min)

2.2

2.5

3.6

�

16k x 13 on chip Program Memory.

�

0.5k x 8 on chip data RAM

�

Up to 31 bi-directional tri-state I/O ports

�

12 level stack for subroutine nesting

�

8-bit real time clock/counter (TCC)

�

two 8-bit counters : COUNTER1 and COUNTER2

�

On-chip watchdog timer (WDT)

�

99.9 single instruction cycle commands

�

Three operating modes (Main clock can be programmed from 447.829k to 14.3MHz generated by internal
PLL)

Mode

CPU status

Main clock

32.768kHz clock status

Sleep mode

Turn off

Green mode

Turn on

Turn off

Turn on

Normal mode

Turn on

�

Input port interrupt function

�

12 interrupt source, 4 external, 8 internal

�

Dual clocks operation (Internal PLL main clock , External 32.768KHz)

SPI

�

Serial Peripheral Interface (SPI) : a kind of serial I/O interface

�

Interrupt flag available for the read buffer full or transmitter buffer empty.

�

Programmable baud rates of communication

�

Three-wire synchronous communication. (shared with IO)

PWM

�

Dual PWM (Pulse Width Modulation) with 10-bit resolution

�

Programmable period (or baud rate)

�

Programmable duty cycle

ADC

�

Operating : 2.5V5.5V

�

6-channel 10-bit successive approximation A/D converter

�

Internal (VDD) or external reference

POR

�

Power-on voltage detector reset

LCD

�

Common driver pins : 4

�

Segment driver pins : 13

�

1/3 bias

�

1/4 duty, 1/2 duty

�

16 Level LCD contrast control by software

PACKAGE

�

EM785830ADQ, EM78P5830DQ, EM78P5830ADQ 44 pin QFP

EM785830AD

8-bit Micro-controller

__________________________________________________________________________________________________________________________________________________________________

* This specification is subject to be changed without notice.

12/14/2004 (V1.4)

III. Application

Communication or general product.

IV. Pin Configuration

EM78P5830DQ,

EM78P5830ADQ

EM785830ADQ

Fig.1: 44-pin QFP assignment

SEG1

SEG0

COM3

COM2

COM1

COM0

AVDD

PLLC

AVSS

3
/
P
6
2

6
/
P
6
5

5
/
P
6
4

4
/
P
6
3

P67

ADR/P66

1
/
P
6
0

2
/
P
6
1

XIN

S
ET

P80

P77

PC2/PWM2

PC1/PWM1

P70/INT0

P73/INT3

P74/SDI

P75/SDO

P76/SCK

P72/INT2

P71/INT1

PC0

PC3

0
/
SE

2
0

1
/
SE

1
9

2
/
SE

1
8

3
/
SE

1
7

4
/
SE

1
6

5
/
SE

1
5

6
/
SE

1
4

7
/
SE

1
3

7
/
SE

1
2

6
/
SE

1
1

5
/
SE

1
0

Электронный компонент: EM785830AD